20007380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1423}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 45454080

約数和(自身を除く): 25446700

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 1423, 2812, 2846, 3515, 5692, 7030, 7115, 14060, 14230, 27037, 28460, 52651, 54074, 105302, 108148, 135185, 210604, 263255, 270370, 526510, 540740, 1000369, 1053020, 2000738, 4001476, 5001845, 10003690, 20007380]

約数ペア:

[(1, 20007380), (2, 10003690), (4, 5001845), (5, 4001476), (10, 2000738), (19, 1053020), (20, 1000369), (37, 540740), (38, 526510), (74, 270370), (76, 263255), (95, 210604), (148, 135185), (185, 108148), (190, 105302), (370, 54074), (380, 52651), (703, 28460), (740, 27037), (1406, 14230), (1423, 14060), (2812, 7115), (2846, 7030), (3515, 5692)]