18995240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1877}}^1$

素因数の和:1922

約数の個数: 64

約数和(自身を含む): 48677760

約数和(自身を除く): 29682520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 1877, 2024, 2530, 3754, 5060, 7508, 9385, 10120, 15016, 18770, 20647, 37540, 41294, 43171, 75080, 82588, 86342, 103235, 165176, 172684, 206470, 215855, 345368, 412940, 431710, 474881, 825880, 863420, 949762, 1726840, 1899524, 2374405, 3799048, 4748810, 9497620, 18995240]

約数ペア:

[(1, 18995240), (2, 9497620), (4, 4748810), (5, 3799048), (8, 2374405), (10, 1899524), (11, 1726840), (20, 949762), (22, 863420), (23, 825880), (40, 474881), (44, 431710), (46, 412940), (55, 345368), (88, 215855), (92, 206470), (110, 172684), (115, 165176), (184, 103235), (220, 86342), (230, 82588), (253, 75080), (440, 43171), (460, 41294), (506, 37540), (920, 20647), (1012, 18770), (1265, 15016), (1877, 10120), (2024, 9385), (2530, 7508), (3754, 5060)]