1904723390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{86539}}^1$

素因数の和:86648

約数の個数: 32

約数和(自身を含む): 3588986880

約数和(自身を除く): 1684263490

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 2201, 4402, 11005, 22010, 86539, 173078, 432695, 865390, 2682709, 5365418, 6144269, 12288538, 13413545, 26827090, 30721345, 61442690, 190472339, 380944678, 952361695, 1904723390]

約数ペア:

[(1, 1904723390), (2, 952361695), (5, 380944678), (10, 190472339), (31, 61442690), (62, 30721345), (71, 26827090), (142, 13413545), (155, 12288538), (310, 6144269), (355, 5365418), (710, 2682709), (2201, 865390), (4402, 432695), (11005, 173078), (22010, 86539)]