647805760

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:565

約数の個数: 224

約数和(自身を含む): 1919508480

約数和(自身を除く): 1271702720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 64, 70, 76, 80, 95, 112, 124, 133, 140, 152, 155, 160, 190, 217, 224, 248, 266, 280, 304, 310, 320, 380, 434, 448, 491, 496, 532, 560, 589, 608, 620, 665, 760, 868, 982, 992, 1064, 1085, 1120, 1178, 1216, 1240, 1330, 1520, 1736, 1964, 1984, 2128, 2170, 2240, 2356, 2455, 2480, 2660, 2945, 3040, 3437, 3472, 3928, 4123, 4256, 4340, 4712, 4910, 4960, 5320, 5890, 6080, 6874, 6944, 7856, 8246, 8512, 8680, 9329, 9424, 9820, 9920, 10640, 11780, 13748, 13888, 15221, 15712, 16492, 17185, 17360, 18658, 18848, 19640, 20615, 21280, 23560, 27496, 30442, 31424, 32984, 34370, 34720, 37316, 37696, 39280, 41230, 42560, 46645, 47120, 54992, 60884, 65303, 65968, 68740, 69440, 74632, 76105, 78560, 82460, 93290, 94240, 106547, 109984, 121768, 130606, 131936, 137480, 149264, 152210, 157120, 164920, 186580, 188480, 213094, 219968, 243536, 261212, 263872, 274960, 289199, 298528, 304420, 326515, 329840, 373160, 426188, 487072, 522424, 532735, 549920, 578398, 597056, 608840, 653030, 659680, 746320, 852376, 974144, 1044848, 1065470, 1099840, 1156796, 1217680, 1306060, 1319360, 1445995, 1492640, 1704752, 2024393, 2089696, 2130940, 2313592, 2435360, 2612120, 2891990, 2985280, 3409504, 4048786, 4179392, 4261880, 4627184, 4870720, 5224240, 5783980, 6819008, 8097572, 8523760, 9254368, 10121965, 10448480, 11567960, 16195144, 17047520, 18508736, 20243930, 20896960, 23135920, 32390288, 34095040, 40487860, 46271840, 64780576, 80975720, 92543680, 129561152, 161951440, 323902880, 647805760]

約数ペア:

[(1, 647805760), (2, 323902880), (4, 161951440), (5, 129561152), (7, 92543680), (8, 80975720), (10, 64780576), (14, 46271840), (16, 40487860), (19, 34095040), (20, 32390288), (28, 23135920), (31, 20896960), (32, 20243930), (35, 18508736), (38, 17047520), (40, 16195144), (56, 11567960), (62, 10448480), (64, 10121965), (70, 9254368), (76, 8523760), (80, 8097572), (95, 6819008), (112, 5783980), (124, 5224240), (133, 4870720), (140, 4627184), (152, 4261880), (155, 4179392), (160, 4048786), (190, 3409504), (217, 2985280), (224, 2891990), (248, 2612120), (266, 2435360), (280, 2313592), (304, 2130940), (310, 2089696), (320, 2024393), (380, 1704752), (434, 1492640), (448, 1445995), (491, 1319360), (496, 1306060), (532, 1217680), (560, 1156796), (589, 1099840), (608, 1065470), (620, 1044848), (665, 974144), (760, 852376), (868, 746320), (982, 659680), (992, 653030), (1064, 608840), (1085, 597056), (1120, 578398), (1178, 549920), (1216, 532735), (1240, 522424), (1330, 487072), (1520, 426188), (1736, 373160), (1964, 329840), (1984, 326515), (2128, 304420), (2170, 298528), (2240, 289199), (2356, 274960), (2455, 263872), (2480, 261212), (2660, 243536), (2945, 219968), (3040, 213094), (3437, 188480), (3472, 186580), (3928, 164920), (4123, 157120), (4256, 152210), (4340, 149264), (4712, 137480), (4910, 131936), (4960, 130606), (5320, 121768), (5890, 109984), (6080, 106547), (6874, 94240), (6944, 93290), (7856, 82460), (8246, 78560), (8512, 76105), (8680, 74632), (9329, 69440), (9424, 68740), (9820, 65968), (9920, 65303), (10640, 60884), (11780, 54992), (13748, 47120), (13888, 46645), (15221, 42560), (15712, 41230), (16492, 39280), (17185, 37696), (17360, 37316), (18658, 34720), (18848, 34370), (19640, 32984), (20615, 31424), (21280, 30442), (23560, 27496)]