18757375

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 30820608

約数和(自身を除く): 12063233

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 97, 119, 125, 175, 221, 325, 425, 455, 485, 595, 679, 875, 1105, 1261, 1547, 1625, 1649, 2125, 2275, 2425, 2975, 3395, 5525, 6305, 7735, 8245, 8827, 11375, 11543, 12125, 14875, 16975, 21437, 27625, 31525, 38675, 41225, 44135, 57715, 84875, 107185, 150059, 157625, 193375, 206125, 220675, 288575, 535925, 750295, 1103375, 1442875, 2679625, 3751475, 18757375]

約数ペア:

[(1, 18757375), (5, 3751475), (7, 2679625), (13, 1442875), (17, 1103375), (25, 750295), (35, 535925), (65, 288575), (85, 220675), (91, 206125), (97, 193375), (119, 157625), (125, 150059), (175, 107185), (221, 84875), (325, 57715), (425, 44135), (455, 41225), (485, 38675), (595, 31525), (679, 27625), (875, 21437), (1105, 16975), (1261, 14875), (1547, 12125), (1625, 11543), (1649, 11375), (2125, 8827), (2275, 8245), (2425, 7735), (2975, 6305), (3395, 5525)]