71813720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{719}}^1$

素因数の和:968

約数の個数: 64

約数和(自身を含む): 177292800

約数和(自身を除く): 105479080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 227, 440, 454, 719, 908, 1135, 1438, 1816, 2270, 2497, 2876, 3595, 4540, 4994, 5752, 7190, 7909, 9080, 9988, 12485, 14380, 15818, 19976, 24970, 28760, 31636, 39545, 49940, 63272, 79090, 99880, 158180, 163213, 316360, 326426, 652852, 816065, 1305704, 1632130, 1795343, 3264260, 3590686, 6528520, 7181372, 8976715, 14362744, 17953430, 35906860, 71813720]

約数ペア:

[(1, 71813720), (2, 35906860), (4, 17953430), (5, 14362744), (8, 8976715), (10, 7181372), (11, 6528520), (20, 3590686), (22, 3264260), (40, 1795343), (44, 1632130), (55, 1305704), (88, 816065), (110, 652852), (220, 326426), (227, 316360), (440, 163213), (454, 158180), (719, 99880), (908, 79090), (1135, 63272), (1438, 49940), (1816, 39545), (2270, 31636), (2497, 28760), (2876, 24970), (3595, 19976), (4540, 15818), (4994, 14380), (5752, 12485), (7190, 9988), (7909, 9080)]