1815520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{1621}}^1$

素因数の和:1643

約数の個数: 48

約数和(自身を含む): 4904928

約数和(自身を除く): 3089408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 1621, 3242, 6484, 8105, 11347, 12968, 16210, 22694, 25936, 32420, 45388, 51872, 56735, 64840, 90776, 113470, 129680, 181552, 226940, 259360, 363104, 453880, 907760, 1815520]

約数ペア:

[(1, 1815520), (2, 907760), (4, 453880), (5, 363104), (7, 259360), (8, 226940), (10, 181552), (14, 129680), (16, 113470), (20, 90776), (28, 64840), (32, 56735), (35, 51872), (40, 45388), (56, 32420), (70, 25936), (80, 22694), (112, 16210), (140, 12968), (160, 11347), (224, 8105), (280, 6484), (560, 3242), (1120, 1621)]