220176125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 318269952

約数和(自身を除く): 98093827

約数列:

[1, 5, 13, 23, 25, 43, 65, 115, 125, 137, 215, 299, 325, 559, 575, 685, 989, 1075, 1495, 1625, 1781, 2795, 2875, 3151, 3425, 4945, 5375, 5891, 7475, 8905, 12857, 13975, 15755, 17125, 24725, 29455, 37375, 40963, 44525, 64285, 69875, 76583, 78775, 123625, 135493, 147275, 204815, 222625, 321425, 382915, 393875, 677465, 736375, 1024075, 1607125, 1761409, 1914575, 3387325, 5120375, 8807045, 9572875, 16936625, 44035225, 220176125]

約数ペア:

[(1, 220176125), (5, 44035225), (13, 16936625), (23, 9572875), (25, 8807045), (43, 5120375), (65, 3387325), (115, 1914575), (125, 1761409), (137, 1607125), (215, 1024075), (299, 736375), (325, 677465), (559, 393875), (575, 382915), (685, 321425), (989, 222625), (1075, 204815), (1495, 147275), (1625, 135493), (1781, 123625), (2795, 78775), (2875, 76583), (3151, 69875), (3425, 64285), (4945, 44525), (5375, 40963), (5891, 37375), (7475, 29455), (8905, 24725), (12857, 17125), (13975, 15755)]