28437240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18229}}^1$

素因数の和:18256

約数の個数: 64

約数和(自身を含む): 91879200

約数和(自身を除く): 63441960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18229, 36458, 54687, 72916, 91145, 109374, 145832, 182290, 218748, 236977, 273435, 364580, 437496, 473954, 546870, 710931, 729160, 947908, 1093740, 1184885, 1421862, 1895816, 2187480, 2369770, 2843724, 3554655, 4739540, 5687448, 7109310, 9479080, 14218620, 28437240]

約数ペア:

[(1, 28437240), (2, 14218620), (3, 9479080), (4, 7109310), (5, 5687448), (6, 4739540), (8, 3554655), (10, 2843724), (12, 2369770), (13, 2187480), (15, 1895816), (20, 1421862), (24, 1184885), (26, 1093740), (30, 947908), (39, 729160), (40, 710931), (52, 546870), (60, 473954), (65, 437496), (78, 364580), (104, 273435), (120, 236977), (130, 218748), (156, 182290), (195, 145832), (260, 109374), (312, 91145), (390, 72916), (520, 54687), (780, 36458), (1560, 18229)]