17689420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4357}}^1$

素因数の和:4402

約数の個数: 48

約数和(自身を含む): 43928640

約数和(自身を除く): 26239220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4357, 8714, 17428, 21785, 30499, 43570, 60998, 87140, 121996, 126353, 152495, 252706, 304990, 505412, 609980, 631765, 884471, 1263530, 1768942, 2527060, 3537884, 4422355, 8844710, 17689420]

約数ペア:

[(1, 17689420), (2, 8844710), (4, 4422355), (5, 3537884), (7, 2527060), (10, 1768942), (14, 1263530), (20, 884471), (28, 631765), (29, 609980), (35, 505412), (58, 304990), (70, 252706), (116, 152495), (140, 126353), (145, 121996), (203, 87140), (290, 60998), (406, 43570), (580, 30499), (812, 21785), (1015, 17428), (2030, 8714), (4060, 4357)]