72138860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{379}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 157301760

約数和(自身を除く): 85162900

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 307, 310, 379, 614, 620, 758, 1228, 1516, 1535, 1895, 3070, 3790, 6140, 7580, 9517, 11749, 19034, 23498, 38068, 46996, 47585, 58745, 95170, 116353, 117490, 190340, 232706, 234980, 465412, 581765, 1163530, 2327060, 3606943, 7213886, 14427772, 18034715, 36069430, 72138860]

約数ペア:

[(1, 72138860), (2, 36069430), (4, 18034715), (5, 14427772), (10, 7213886), (20, 3606943), (31, 2327060), (62, 1163530), (124, 581765), (155, 465412), (307, 234980), (310, 232706), (379, 190340), (614, 117490), (620, 116353), (758, 95170), (1228, 58745), (1516, 47585), (1535, 46996), (1895, 38068), (3070, 23498), (3790, 19034), (6140, 11749), (7580, 9517)]