72181580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{1283}}^1$

素因数の和:1418

約数の個数: 48

約数和(自身を含む): 158548320

約数和(自身を除く): 86366740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 388, 485, 580, 970, 1283, 1940, 2566, 2813, 5132, 5626, 6415, 11252, 12830, 14065, 25660, 28130, 37207, 56260, 74414, 124451, 148828, 186035, 248902, 372070, 497804, 622255, 744140, 1244510, 2489020, 3609079, 7218158, 14436316, 18045395, 36090790, 72181580]

約数ペア:

[(1, 72181580), (2, 36090790), (4, 18045395), (5, 14436316), (10, 7218158), (20, 3609079), (29, 2489020), (58, 1244510), (97, 744140), (116, 622255), (145, 497804), (194, 372070), (290, 248902), (388, 186035), (485, 148828), (580, 124451), (970, 74414), (1283, 56260), (1940, 37207), (2566, 28130), (2813, 25660), (5132, 14065), (5626, 12830), (6415, 11252)]