164979520

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16631}}^1$

素因数の和:16679

約数の個数: 56

約数和(自身を含む): 405554688

約数和(自身を除く): 240575168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 16631, 33262, 66524, 83155, 133048, 166310, 266096, 332620, 515561, 532192, 665240, 1031122, 1064384, 1330480, 2062244, 2577805, 2660960, 4124488, 5155610, 5321920, 8248976, 10311220, 16497952, 20622440, 32995904, 41244880, 82489760, 164979520]

約数ペア:

[(1, 164979520), (2, 82489760), (4, 41244880), (5, 32995904), (8, 20622440), (10, 16497952), (16, 10311220), (20, 8248976), (31, 5321920), (32, 5155610), (40, 4124488), (62, 2660960), (64, 2577805), (80, 2062244), (124, 1330480), (155, 1064384), (160, 1031122), (248, 665240), (310, 532192), (320, 515561), (496, 332620), (620, 266096), (992, 166310), (1240, 133048), (1984, 83155), (2480, 66524), (4960, 33262), (9920, 16631)]