19937030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:992

約数の個数: 32

約数和(自身を含む): 37594368

約数和(自身を除く): 17657338

約数列:

[1, 2, 5, 10, 31, 62, 73, 146, 155, 310, 365, 730, 881, 1762, 2263, 4405, 4526, 8810, 11315, 22630, 27311, 54622, 64313, 128626, 136555, 273110, 321565, 643130, 1993703, 3987406, 9968515, 19937030]

約数ペア:

[(1, 19937030), (2, 9968515), (5, 3987406), (10, 1993703), (31, 643130), (62, 321565), (73, 273110), (146, 136555), (155, 128626), (310, 64313), (365, 54622), (730, 27311), (881, 22630), (1762, 11315), (2263, 8810), (4405, 4526)]