28870700

素因数分解:

$2^2\times 5^2\times {\mathrm{449}}^1\times {\mathrm{643}}^1$

素因数の和:1106

約数の個数: 36

約数和(自身を含む): 62886600

約数和(自身を除く): 34015900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 449, 643, 898, 1286, 1796, 2245, 2572, 3215, 4490, 6430, 8980, 11225, 12860, 16075, 22450, 32150, 44900, 64300, 288707, 577414, 1154828, 1443535, 2887070, 5774140, 7217675, 14435350, 28870700]

約数ペア:

[(1, 28870700), (2, 14435350), (4, 7217675), (5, 5774140), (10, 2887070), (20, 1443535), (25, 1154828), (50, 577414), (100, 288707), (449, 64300), (643, 44900), (898, 32150), (1286, 22450), (1796, 16075), (2245, 12860), (2572, 11225), (3215, 8980), (4490, 6430)]