163640480

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2083}}^1$

素因数の和:2589

約数の個数: 48

約数和(自身を含む): 387573984

約数和(自身を除く): 223933504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 982, 1964, 2083, 2455, 3928, 4166, 4910, 7856, 8332, 9820, 10415, 15712, 16664, 19640, 20830, 33328, 39280, 41660, 66656, 78560, 83320, 166640, 333280, 1022753, 2045506, 4091012, 5113765, 8182024, 10227530, 16364048, 20455060, 32728096, 40910120, 81820240, 163640480]

約数ペア:

[(1, 163640480), (2, 81820240), (4, 40910120), (5, 32728096), (8, 20455060), (10, 16364048), (16, 10227530), (20, 8182024), (32, 5113765), (40, 4091012), (80, 2045506), (160, 1022753), (491, 333280), (982, 166640), (1964, 83320), (2083, 78560), (2455, 66656), (3928, 41660), (4166, 39280), (4910, 33328), (7856, 20830), (8332, 19640), (9820, 16664), (10415, 15712)]