64181680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21683}}^1$

素因数の和:21733

約数の個数: 40

約数和(自身を含む): 153262512

約数和(自身を除く): 89080832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 21683, 43366, 86732, 108415, 173464, 216830, 346928, 433660, 802271, 867320, 1604542, 1734640, 3209084, 4011355, 6418168, 8022710, 12836336, 16045420, 32090840, 64181680]

約数ペア:

[(1, 64181680), (2, 32090840), (4, 16045420), (5, 12836336), (8, 8022710), (10, 6418168), (16, 4011355), (20, 3209084), (37, 1734640), (40, 1604542), (74, 867320), (80, 802271), (148, 433660), (185, 346928), (296, 216830), (370, 173464), (592, 108415), (740, 86732), (1480, 43366), (2960, 21683)]