51461480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{769}}^1$

素因数の和:1026

約数の個数: 64

約数和(自身を含む): 133056000

約数和(自身を除く): 81594520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 478, 769, 956, 1195, 1538, 1673, 1912, 2390, 3076, 3346, 3845, 4780, 5383, 6152, 6692, 7690, 8365, 9560, 10766, 13384, 15380, 16730, 21532, 26915, 30760, 33460, 43064, 53830, 66920, 107660, 183791, 215320, 367582, 735164, 918955, 1286537, 1470328, 1837910, 2573074, 3675820, 5146148, 6432685, 7351640, 10292296, 12865370, 25730740, 51461480]

約数ペア:

[(1, 51461480), (2, 25730740), (4, 12865370), (5, 10292296), (7, 7351640), (8, 6432685), (10, 5146148), (14, 3675820), (20, 2573074), (28, 1837910), (35, 1470328), (40, 1286537), (56, 918955), (70, 735164), (140, 367582), (239, 215320), (280, 183791), (478, 107660), (769, 66920), (956, 53830), (1195, 43064), (1538, 33460), (1673, 30760), (1912, 26915), (2390, 21532), (3076, 16730), (3346, 15380), (3845, 13384), (4780, 10766), (5383, 9560), (6152, 8365), (6692, 7690)]