19971440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8053}}^1$

素因数の和:8097

約数の個数: 40

約数和(自身を含む): 47937408

約数和(自身を除く): 27965968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8053, 16106, 32212, 40265, 64424, 80530, 128848, 161060, 249643, 322120, 499286, 644240, 998572, 1248215, 1997144, 2496430, 3994288, 4992860, 9985720, 19971440]

約数ペア:

[(1, 19971440), (2, 9985720), (4, 4992860), (5, 3994288), (8, 2496430), (10, 1997144), (16, 1248215), (20, 998572), (31, 644240), (40, 499286), (62, 322120), (80, 249643), (124, 161060), (155, 128848), (248, 80530), (310, 64424), (496, 40265), (620, 32212), (1240, 16106), (2480, 8053)]