9981125

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 64

約数和(自身を含む): 16713216

約数和(自身を除く): 6732091

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 61, 77, 85, 119, 125, 175, 187, 275, 305, 385, 425, 427, 595, 671, 875, 935, 1037, 1309, 1375, 1525, 1925, 2125, 2135, 2975, 3355, 4675, 4697, 5185, 6545, 7259, 7625, 9625, 10675, 11407, 14875, 16775, 23375, 23485, 25925, 32725, 36295, 53375, 57035, 79849, 83875, 117425, 129625, 163625, 181475, 285175, 399245, 587125, 907375, 1425875, 1996225, 9981125]

約数ペア:

[(1, 9981125), (5, 1996225), (7, 1425875), (11, 907375), (17, 587125), (25, 399245), (35, 285175), (55, 181475), (61, 163625), (77, 129625), (85, 117425), (119, 83875), (125, 79849), (175, 57035), (187, 53375), (275, 36295), (305, 32725), (385, 25925), (425, 23485), (427, 23375), (595, 16775), (671, 14875), (875, 11407), (935, 10675), (1037, 9625), (1309, 7625), (1375, 7259), (1525, 6545), (1925, 5185), (2125, 4697), (2135, 4675), (2975, 3355)]