20645664

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:330

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 38794080

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 71, 78, 96, 104, 142, 156, 208, 213, 233, 284, 312, 416, 426, 466, 568, 624, 699, 852, 923, 932, 1136, 1248, 1398, 1704, 1846, 1864, 2272, 2769, 2796, 3029, 3408, 3692, 3728, 5538, 5592, 6058, 6816, 7384, 7456, 9087, 11076, 11184, 12116, 14768, 16543, 18174, 22152, 22368, 24232, 29536, 33086, 36348, 44304, 48464, 49629, 66172, 72696, 88608, 96928, 99258, 132344, 145392, 198516, 215059, 264688, 290784, 397032, 430118, 529376, 645177, 794064, 860236, 1290354, 1588128, 1720472, 2580708, 3440944, 5161416, 6881888, 10322832, 20645664]

約数ペア:

[(1, 20645664), (2, 10322832), (3, 6881888), (4, 5161416), (6, 3440944), (8, 2580708), (12, 1720472), (13, 1588128), (16, 1290354), (24, 860236), (26, 794064), (32, 645177), (39, 529376), (48, 430118), (52, 397032), (71, 290784), (78, 264688), (96, 215059), (104, 198516), (142, 145392), (156, 132344), (208, 99258), (213, 96928), (233, 88608), (284, 72696), (312, 66172), (416, 49629), (426, 48464), (466, 44304), (568, 36348), (624, 33086), (699, 29536), (852, 24232), (923, 22368), (932, 22152), (1136, 18174), (1248, 16543), (1398, 14768), (1704, 12116), (1846, 11184), (1864, 11076), (2272, 9087), (2769, 7456), (2796, 7384), (3029, 6816), (3408, 6058), (3692, 5592), (3728, 5538)]