388598640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2815

約数の個数: 160

約数和(自身を含む): 1309440000

約数和(自身を除く): 920841360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 240, 248, 285, 304, 310, 372, 380, 456, 465, 496, 570, 589, 620, 744, 760, 912, 930, 1140, 1178, 1240, 1488, 1520, 1767, 1860, 2280, 2356, 2480, 2749, 2945, 3534, 3720, 4560, 4712, 5498, 5890, 7068, 7440, 8247, 8835, 9424, 10996, 11780, 13745, 14136, 16494, 17670, 21992, 23560, 27490, 28272, 32988, 35340, 41235, 43984, 47120, 52231, 54980, 65976, 70680, 82470, 85219, 104462, 109960, 131952, 141360, 156693, 164940, 170438, 208924, 219920, 255657, 261155, 313386, 329880, 340876, 417848, 426095, 511314, 522310, 626772, 659760, 681752, 783465, 835696, 852190, 1022628, 1044620, 1253544, 1278285, 1363504, 1566930, 1619161, 1704380, 2045256, 2089240, 2507088, 2556570, 3133860, 3238322, 3408760, 4090512, 4178480, 4857483, 5113140, 6267720, 6476644, 6817520, 8095805, 9714966, 10226280, 12535440, 12953288, 16191610, 19429932, 20452560, 24287415, 25906576, 32383220, 38859864, 48574830, 64766440, 77719728, 97149660, 129532880, 194299320, 388598640]

約数ペア:

[(1, 388598640), (2, 194299320), (3, 129532880), (4, 97149660), (5, 77719728), (6, 64766440), (8, 48574830), (10, 38859864), (12, 32383220), (15, 25906576), (16, 24287415), (19, 20452560), (20, 19429932), (24, 16191610), (30, 12953288), (31, 12535440), (38, 10226280), (40, 9714966), (48, 8095805), (57, 6817520), (60, 6476644), (62, 6267720), (76, 5113140), (80, 4857483), (93, 4178480), (95, 4090512), (114, 3408760), (120, 3238322), (124, 3133860), (152, 2556570), (155, 2507088), (186, 2089240), (190, 2045256), (228, 1704380), (240, 1619161), (248, 1566930), (285, 1363504), (304, 1278285), (310, 1253544), (372, 1044620), (380, 1022628), (456, 852190), (465, 835696), (496, 783465), (570, 681752), (589, 659760), (620, 626772), (744, 522310), (760, 511314), (912, 426095), (930, 417848), (1140, 340876), (1178, 329880), (1240, 313386), (1488, 261155), (1520, 255657), (1767, 219920), (1860, 208924), (2280, 170438), (2356, 164940), (2480, 156693), (2749, 141360), (2945, 131952), (3534, 109960), (3720, 104462), (4560, 85219), (4712, 82470), (5498, 70680), (5890, 65976), (7068, 54980), (7440, 52231), (8247, 47120), (8835, 43984), (9424, 41235), (10996, 35340), (11780, 32988), (13745, 28272), (14136, 27490), (16494, 23560), (17670, 21992)]