20164776775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{569}}^1$

素因数の和:1057

約数の個数: 96

約数和(自身を含む): 30778030080

約数和(自身を除く): 10613253305

約数列:

[1, 5, 11, 13, 23, 25, 55, 65, 115, 143, 253, 275, 299, 325, 431, 569, 575, 715, 1265, 1495, 2155, 2845, 3289, 3575, 4741, 5603, 6259, 6325, 7397, 7475, 9913, 10775, 13087, 14225, 16445, 23705, 28015, 31295, 36985, 49565, 61633, 65435, 81367, 82225, 109043, 118525, 128869, 140075, 143957, 156475, 170131, 184925, 245239, 247825, 308165, 327175, 406835, 545215, 644345, 719785, 850655, 1226195, 1417559, 1540825, 1871441, 2034175, 2697629, 2726075, 3188107, 3221725, 3598925, 4253275, 5640497, 6130975, 7087795, 9357205, 13488145, 15940535, 28202485, 35069177, 35438975, 46786025, 62045467, 67440725, 73326461, 79702675, 141012425, 175345885, 310227335, 366632305, 806591071, 876729425, 1551136675, 1833161525, 4032955355, 20164776775]

約数ペア:

[(1, 20164776775), (5, 4032955355), (11, 1833161525), (13, 1551136675), (23, 876729425), (25, 806591071), (55, 366632305), (65, 310227335), (115, 175345885), (143, 141012425), (253, 79702675), (275, 73326461), (299, 67440725), (325, 62045467), (431, 46786025), (569, 35438975), (575, 35069177), (715, 28202485), (1265, 15940535), (1495, 13488145), (2155, 9357205), (2845, 7087795), (3289, 6130975), (3575, 5640497), (4741, 4253275), (5603, 3598925), (6259, 3221725), (6325, 3188107), (7397, 2726075), (7475, 2697629), (9913, 2034175), (10775, 1871441), (13087, 1540825), (14225, 1417559), (16445, 1226195), (23705, 850655), (28015, 719785), (31295, 644345), (36985, 545215), (49565, 406835), (61633, 327175), (65435, 308165), (81367, 247825), (82225, 245239), (109043, 184925), (118525, 170131), (128869, 156475), (140075, 143957)]