18804880

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6353}}^1$

素因数の和:6403

約数の個数: 40

約数和(自身を含む): 44910072

約数和(自身を除く): 26105192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6353, 12706, 25412, 31765, 50824, 63530, 101648, 127060, 235061, 254120, 470122, 508240, 940244, 1175305, 1880488, 2350610, 3760976, 4701220, 9402440, 18804880]

約数ペア:

[(1, 18804880), (2, 9402440), (4, 4701220), (5, 3760976), (8, 2350610), (10, 1880488), (16, 1175305), (20, 940244), (37, 508240), (40, 470122), (74, 254120), (80, 235061), (148, 127060), (185, 101648), (296, 63530), (370, 50824), (592, 31765), (740, 25412), (1480, 12706), (2960, 6353)]