20132020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1709}}^1$

素因数の和:1768

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 25832780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1709, 2356, 2945, 3418, 5890, 6836, 8545, 11780, 17090, 32471, 34180, 52979, 64942, 105958, 129884, 162355, 211916, 264895, 324710, 529790, 649420, 1006601, 1059580, 2013202, 4026404, 5033005, 10066010, 20132020]

約数ペア:

[(1, 20132020), (2, 10066010), (4, 5033005), (5, 4026404), (10, 2013202), (19, 1059580), (20, 1006601), (31, 649420), (38, 529790), (62, 324710), (76, 264895), (95, 211916), (124, 162355), (155, 129884), (190, 105958), (310, 64942), (380, 52979), (589, 34180), (620, 32471), (1178, 17090), (1709, 11780), (2356, 8545), (2945, 6836), (3418, 5890)]