18681250

素因数分解:

$2^1\times 5^5\times 7^2\times {\mathrm{61}}^1$

素因数の和:102

約数の個数: 72

約数和(自身を含む): 41411412

約数和(自身を除く): 22730162

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 61, 70, 98, 122, 125, 175, 245, 250, 305, 350, 427, 490, 610, 625, 854, 875, 1225, 1250, 1525, 1750, 2135, 2450, 2989, 3050, 3125, 4270, 4375, 5978, 6125, 6250, 7625, 8750, 10675, 12250, 14945, 15250, 21350, 21875, 29890, 30625, 38125, 43750, 53375, 61250, 74725, 76250, 106750, 149450, 153125, 190625, 266875, 306250, 373625, 381250, 533750, 747250, 1334375, 1868125, 2668750, 3736250, 9340625, 18681250]

約数ペア:

[(1, 18681250), (2, 9340625), (5, 3736250), (7, 2668750), (10, 1868125), (14, 1334375), (25, 747250), (35, 533750), (49, 381250), (50, 373625), (61, 306250), (70, 266875), (98, 190625), (122, 153125), (125, 149450), (175, 106750), (245, 76250), (250, 74725), (305, 61250), (350, 53375), (427, 43750), (490, 38125), (610, 30625), (625, 29890), (854, 21875), (875, 21350), (1225, 15250), (1250, 14945), (1525, 12250), (1750, 10675), (2135, 8750), (2450, 7625), (2989, 6250), (3050, 6125), (3125, 5978), (4270, 4375)]