20125875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:94

約数の個数: 128

約数和(自身を含む): 45287424

約数和(自身を除く): 25161549

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 25, 33, 35, 41, 51, 55, 75, 77, 85, 105, 119, 123, 125, 165, 175, 187, 205, 231, 255, 275, 287, 357, 375, 385, 425, 451, 525, 561, 595, 615, 697, 825, 861, 875, 935, 1025, 1155, 1275, 1309, 1353, 1375, 1435, 1785, 1925, 2091, 2125, 2255, 2625, 2805, 2975, 3075, 3157, 3485, 3927, 4125, 4305, 4675, 4879, 5125, 5775, 6375, 6545, 6765, 7175, 7667, 8925, 9471, 9625, 10455, 11275, 14025, 14637, 14875, 15375, 15785, 17425, 19635, 21525, 23001, 23375, 24395, 28875, 32725, 33825, 35875, 38335, 44625, 47355, 52275, 53669, 56375, 70125, 73185, 78925, 87125, 98175, 107625, 115005, 121975, 161007, 163625, 169125, 191675, 236775, 261375, 268345, 365925, 394625, 490875, 575025, 609875, 805035, 958375, 1183875, 1341725, 1829625, 2875125, 4025175, 6708625, 20125875]

約数ペア:

[(1, 20125875), (3, 6708625), (5, 4025175), (7, 2875125), (11, 1829625), (15, 1341725), (17, 1183875), (21, 958375), (25, 805035), (33, 609875), (35, 575025), (41, 490875), (51, 394625), (55, 365925), (75, 268345), (77, 261375), (85, 236775), (105, 191675), (119, 169125), (123, 163625), (125, 161007), (165, 121975), (175, 115005), (187, 107625), (205, 98175), (231, 87125), (255, 78925), (275, 73185), (287, 70125), (357, 56375), (375, 53669), (385, 52275), (425, 47355), (451, 44625), (525, 38335), (561, 35875), (595, 33825), (615, 32725), (697, 28875), (825, 24395), (861, 23375), (875, 23001), (935, 21525), (1025, 19635), (1155, 17425), (1275, 15785), (1309, 15375), (1353, 14875), (1375, 14637), (1435, 14025), (1785, 11275), (1925, 10455), (2091, 9625), (2125, 9471), (2255, 8925), (2625, 7667), (2805, 7175), (2975, 6765), (3075, 6545), (3157, 6375), (3485, 5775), (3927, 5125), (4125, 4879), (4305, 4675)]