18792280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 27474920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 509, 520, 568, 710, 923, 1018, 1420, 1846, 2036, 2545, 2840, 3692, 4072, 4615, 5090, 6617, 7384, 9230, 10180, 13234, 18460, 20360, 26468, 33085, 36139, 36920, 52936, 66170, 72278, 132340, 144556, 180695, 264680, 289112, 361390, 469807, 722780, 939614, 1445560, 1879228, 2349035, 3758456, 4698070, 9396140, 18792280]

約数ペア:

[(1, 18792280), (2, 9396140), (4, 4698070), (5, 3758456), (8, 2349035), (10, 1879228), (13, 1445560), (20, 939614), (26, 722780), (40, 469807), (52, 361390), (65, 289112), (71, 264680), (104, 180695), (130, 144556), (142, 132340), (260, 72278), (284, 66170), (355, 52936), (509, 36920), (520, 36139), (568, 33085), (710, 26468), (923, 20360), (1018, 18460), (1420, 13234), (1846, 10180), (2036, 9230), (2545, 7384), (2840, 6617), (3692, 5090), (4072, 4615)]