646227240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:328

約数の個数: 256

約数和(自身を含む): 2167603200

約数和(自身を除く): 1521375960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 41, 57, 60, 62, 76, 82, 93, 95, 114, 120, 123, 124, 152, 155, 164, 186, 190, 205, 223, 228, 246, 248, 285, 310, 328, 372, 380, 410, 446, 456, 465, 492, 570, 589, 615, 620, 669, 744, 760, 779, 820, 892, 930, 984, 1115, 1140, 1178, 1230, 1240, 1271, 1338, 1558, 1640, 1767, 1784, 1860, 2230, 2280, 2337, 2356, 2460, 2542, 2676, 2945, 3116, 3345, 3534, 3720, 3813, 3895, 4237, 4460, 4674, 4712, 4920, 5084, 5352, 5890, 6232, 6355, 6690, 6913, 7068, 7626, 7790, 8474, 8835, 8920, 9143, 9348, 10168, 11685, 11780, 12710, 12711, 13380, 13826, 14136, 15252, 15580, 16948, 17670, 18286, 18696, 19065, 20739, 21185, 23370, 23560, 24149, 25420, 25422, 26760, 27429, 27652, 30504, 31160, 33896, 34565, 35340, 36572, 38130, 41478, 42370, 45715, 46740, 48298, 50840, 50844, 54858, 55304, 63555, 69130, 70680, 72447, 73144, 76260, 82956, 84740, 91430, 93480, 96596, 101688, 103695, 109716, 120745, 127110, 131347, 137145, 138260, 144894, 152520, 165912, 169480, 173717, 182860, 193192, 207390, 219432, 241490, 254220, 262694, 274290, 276520, 283433, 289788, 347434, 362235, 365720, 394041, 414780, 482980, 508440, 521151, 525388, 548580, 566866, 579576, 656735, 694868, 724470, 788082, 829560, 850299, 868585, 965960, 1042302, 1050776, 1097160, 1133732, 1313470, 1389736, 1417165, 1448940, 1576164, 1700598, 1737170, 1970205, 2084604, 2267464, 2605755, 2626940, 2834330, 2897880, 3152328, 3401196, 3474340, 3940410, 4169208, 4251495, 5211510, 5253880, 5385227, 5668660, 6802392, 6948680, 7880820, 8502990, 10423020, 10770454, 11337320, 15761640, 16155681, 17005980, 20846040, 21540908, 26926135, 32311362, 34011960, 43081816, 53852270, 64622724, 80778405, 107704540, 129245448, 161556810, 215409080, 323113620, 646227240]

約数ペア:

[(1, 646227240), (2, 323113620), (3, 215409080), (4, 161556810), (5, 129245448), (6, 107704540), (8, 80778405), (10, 64622724), (12, 53852270), (15, 43081816), (19, 34011960), (20, 32311362), (24, 26926135), (30, 21540908), (31, 20846040), (38, 17005980), (40, 16155681), (41, 15761640), (57, 11337320), (60, 10770454), (62, 10423020), (76, 8502990), (82, 7880820), (93, 6948680), (95, 6802392), (114, 5668660), (120, 5385227), (123, 5253880), (124, 5211510), (152, 4251495), (155, 4169208), (164, 3940410), (186, 3474340), (190, 3401196), (205, 3152328), (223, 2897880), (228, 2834330), (246, 2626940), (248, 2605755), (285, 2267464), (310, 2084604), (328, 1970205), (372, 1737170), (380, 1700598), (410, 1576164), (446, 1448940), (456, 1417165), (465, 1389736), (492, 1313470), (570, 1133732), (589, 1097160), (615, 1050776), (620, 1042302), (669, 965960), (744, 868585), (760, 850299), (779, 829560), (820, 788082), (892, 724470), (930, 694868), (984, 656735), (1115, 579576), (1140, 566866), (1178, 548580), (1230, 525388), (1240, 521151), (1271, 508440), (1338, 482980), (1558, 414780), (1640, 394041), (1767, 365720), (1784, 362235), (1860, 347434), (2230, 289788), (2280, 283433), (2337, 276520), (2356, 274290), (2460, 262694), (2542, 254220), (2676, 241490), (2945, 219432), (3116, 207390), (3345, 193192), (3534, 182860), (3720, 173717), (3813, 169480), (3895, 165912), (4237, 152520), (4460, 144894), (4674, 138260), (4712, 137145), (4920, 131347), (5084, 127110), (5352, 120745), (5890, 109716), (6232, 103695), (6355, 101688), (6690, 96596), (6913, 93480), (7068, 91430), (7626, 84740), (7790, 82956), (8474, 76260), (8835, 73144), (8920, 72447), (9143, 70680), (9348, 69130), (10168, 63555), (11685, 55304), (11780, 54858), (12710, 50844), (12711, 50840), (13380, 48298), (13826, 46740), (14136, 45715), (15252, 42370), (15580, 41478), (16948, 38130), (17670, 36572), (18286, 35340), (18696, 34565), (19065, 33896), (20739, 31160), (21185, 30504), (23370, 27652), (23560, 27429), (24149, 26760), (25420, 25422)]