18758480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1061}}^1$

素因数の和:1104

約数の個数: 80

約数和(自身を含む): 49778064

約数和(自身を除く): 31019584

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, 1061, 1105, 1360, 1768, 2122, 2210, 3536, 4244, 4420, 5305, 8488, 8840, 10610, 13793, 16976, 17680, 18037, 21220, 27586, 36074, 42440, 55172, 68965, 72148, 84880, 90185, 110344, 137930, 144296, 180370, 220688, 234481, 275860, 288592, 360740, 468962, 551720, 721480, 937924, 1103440, 1172405, 1442960, 1875848, 2344810, 3751696, 4689620, 9379240, 18758480]

約数ペア:

[(1, 18758480), (2, 9379240), (4, 4689620), (5, 3751696), (8, 2344810), (10, 1875848), (13, 1442960), (16, 1172405), (17, 1103440), (20, 937924), (26, 721480), (34, 551720), (40, 468962), (52, 360740), (65, 288592), (68, 275860), (80, 234481), (85, 220688), (104, 180370), (130, 144296), (136, 137930), (170, 110344), (208, 90185), (221, 84880), (260, 72148), (272, 68965), (340, 55172), (442, 42440), (520, 36074), (680, 27586), (884, 21220), (1040, 18037), (1061, 17680), (1105, 16976), (1360, 13793), (1768, 10610), (2122, 8840), (2210, 8488), (3536, 5305), (4244, 4420)]