18454280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1543}}^1$

素因数の和:1590

約数の個数: 64

約数和(自身を含む): 46690560

約数和(自身を除く): 28236280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 1543, 2392, 2990, 3086, 5980, 6172, 7715, 11960, 12344, 15430, 20059, 30860, 35489, 40118, 61720, 70978, 80236, 100295, 141956, 160472, 177445, 200590, 283912, 354890, 401180, 461357, 709780, 802360, 922714, 1419560, 1845428, 2306785, 3690856, 4613570, 9227140, 18454280]

約数ペア:

[(1, 18454280), (2, 9227140), (4, 4613570), (5, 3690856), (8, 2306785), (10, 1845428), (13, 1419560), (20, 922714), (23, 802360), (26, 709780), (40, 461357), (46, 401180), (52, 354890), (65, 283912), (92, 200590), (104, 177445), (115, 160472), (130, 141956), (184, 100295), (230, 80236), (260, 70978), (299, 61720), (460, 40118), (520, 35489), (598, 30860), (920, 20059), (1196, 15430), (1495, 12344), (1543, 11960), (2392, 7715), (2990, 6172), (3086, 5980)]