18793840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1063}}^1$

素因数の和:1106

約数の個数: 80

約数和(自身を含む): 49871808

約数和(自身を除く): 31077968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1063, 1105, 1360, 1768, 2126, 2210, 3536, 4252, 4420, 5315, 8504, 8840, 10630, 13819, 17008, 17680, 18071, 21260, 27638, 36142, 42520, 55276, 69095, 72284, 85040, 90355, 110552, 138190, 144568, 180710, 221104, 234923, 276380, 289136, 361420, 469846, 552760, 722840, 939692, 1105520, 1174615, 1445680, 1879384, 2349230, 3758768, 4698460, 9396920, 18793840]

約数ペア:

[(1, 18793840), (2, 9396920), (4, 4698460), (5, 3758768), (8, 2349230), (10, 1879384), (13, 1445680), (16, 1174615), (17, 1105520), (20, 939692), (26, 722840), (34, 552760), (40, 469846), (52, 361420), (65, 289136), (68, 276380), (80, 234923), (85, 221104), (104, 180710), (130, 144568), (136, 138190), (170, 110552), (208, 90355), (221, 85040), (260, 72284), (272, 69095), (340, 55276), (442, 42520), (520, 36142), (680, 27638), (884, 21260), (1040, 18071), (1063, 17680), (1105, 17008), (1360, 13819), (1768, 10630), (2126, 8840), (2210, 8504), (3536, 5315), (4252, 4420)]