129306860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{887}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 280615104

約数和(自身を除く): 151308244

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 197, 370, 394, 740, 788, 887, 985, 1774, 1970, 3548, 3940, 4435, 7289, 8870, 14578, 17740, 29156, 32819, 36445, 65638, 72890, 131276, 145780, 164095, 174739, 328190, 349478, 656380, 698956, 873695, 1747390, 3494780, 6465343, 12930686, 25861372, 32326715, 64653430, 129306860]

約数ペア:

[(1, 129306860), (2, 64653430), (4, 32326715), (5, 25861372), (10, 12930686), (20, 6465343), (37, 3494780), (74, 1747390), (148, 873695), (185, 698956), (197, 656380), (370, 349478), (394, 328190), (740, 174739), (788, 164095), (887, 145780), (985, 131276), (1774, 72890), (1970, 65638), (3548, 36445), (3940, 32819), (4435, 29156), (7289, 17740), (8870, 14578)]