80351380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 184343040

約数和(自身を除く): 103991660

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 359, 361, 380, 589, 620, 718, 722, 1178, 1436, 1444, 1795, 1805, 2356, 2945, 3590, 3610, 5890, 6821, 7180, 7220, 11129, 11191, 11780, 13642, 22258, 22382, 27284, 34105, 44516, 44764, 55645, 55955, 68210, 111290, 111910, 129599, 136420, 211451, 222580, 223820, 259198, 422902, 518396, 647995, 845804, 1057255, 1295990, 2114510, 2591980, 4017569, 4229020, 8035138, 16070276, 20087845, 40175690, 80351380]

約数ペア:

[(1, 80351380), (2, 40175690), (4, 20087845), (5, 16070276), (10, 8035138), (19, 4229020), (20, 4017569), (31, 2591980), (38, 2114510), (62, 1295990), (76, 1057255), (95, 845804), (124, 647995), (155, 518396), (190, 422902), (310, 259198), (359, 223820), (361, 222580), (380, 211451), (589, 136420), (620, 129599), (718, 111910), (722, 111290), (1178, 68210), (1436, 55955), (1444, 55645), (1795, 44764), (1805, 44516), (2356, 34105), (2945, 27284), (3590, 22382), (3610, 22258), (5890, 13642), (6821, 11780), (7180, 11191), (7220, 11129)]