90872720

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2711}}^1$

素因数の和:3143

約数の個数: 40

約数和(自身を含む): 211861440

約数和(自身を除く): 120988720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 838, 1676, 2095, 2711, 3352, 4190, 5422, 6704, 8380, 10844, 13555, 16760, 21688, 27110, 33520, 43376, 54220, 108440, 216880, 1135909, 2271818, 4543636, 5679545, 9087272, 11359090, 18174544, 22718180, 45436360, 90872720]

約数ペア:

[(1, 90872720), (2, 45436360), (4, 22718180), (5, 18174544), (8, 11359090), (10, 9087272), (16, 5679545), (20, 4543636), (40, 2271818), (80, 1135909), (419, 216880), (838, 108440), (1676, 54220), (2095, 43376), (2711, 33520), (3352, 27110), (4190, 21688), (5422, 16760), (6704, 13555), (8380, 10844)]