20511350

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 41180400

約数和(自身を除く): 20669050

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 59, 85, 118, 170, 295, 409, 425, 590, 818, 850, 1003, 1475, 2006, 2045, 2950, 4090, 5015, 6953, 10030, 10225, 13906, 20450, 24131, 25075, 34765, 48262, 50150, 69530, 120655, 173825, 241310, 347650, 410227, 603275, 820454, 1206550, 2051135, 4102270, 10255675, 20511350]

約数ペア:

[(1, 20511350), (2, 10255675), (5, 4102270), (10, 2051135), (17, 1206550), (25, 820454), (34, 603275), (50, 410227), (59, 347650), (85, 241310), (118, 173825), (170, 120655), (295, 69530), (409, 50150), (425, 48262), (590, 34765), (818, 25075), (850, 24131), (1003, 20450), (1475, 13906), (2006, 10225), (2045, 10030), (2950, 6953), (4090, 5015)]