72709880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 170311680

約数和(自身を除く): 97601800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 191, 248, 307, 310, 382, 614, 620, 764, 955, 1228, 1240, 1528, 1535, 1910, 2456, 3070, 3820, 5921, 6140, 7640, 9517, 11842, 12280, 19034, 23684, 29605, 38068, 47368, 47585, 58637, 59210, 76136, 95170, 117274, 118420, 190340, 234548, 236840, 293185, 380680, 469096, 586370, 1172740, 1817747, 2345480, 3635494, 7270988, 9088735, 14541976, 18177470, 36354940, 72709880]

約数ペア:

[(1, 72709880), (2, 36354940), (4, 18177470), (5, 14541976), (8, 9088735), (10, 7270988), (20, 3635494), (31, 2345480), (40, 1817747), (62, 1172740), (124, 586370), (155, 469096), (191, 380680), (248, 293185), (307, 236840), (310, 234548), (382, 190340), (614, 118420), (620, 117274), (764, 95170), (955, 76136), (1228, 59210), (1240, 58637), (1528, 47585), (1535, 47368), (1910, 38068), (2456, 29605), (3070, 23684), (3820, 19034), (5921, 12280), (6140, 11842), (7640, 9517)]