20155190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 40938480

約数和(自身を除く): 20783290

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 109, 110, 205, 218, 410, 451, 545, 902, 1090, 1199, 1681, 2255, 2398, 3362, 4469, 4510, 5995, 8405, 8938, 11990, 16810, 18491, 22345, 36982, 44690, 49159, 92455, 98318, 183229, 184910, 245795, 366458, 491590, 916145, 1832290, 2015519, 4031038, 10077595, 20155190]

約数ペア:

[(1, 20155190), (2, 10077595), (5, 4031038), (10, 2015519), (11, 1832290), (22, 916145), (41, 491590), (55, 366458), (82, 245795), (109, 184910), (110, 183229), (205, 98318), (218, 92455), (410, 49159), (451, 44690), (545, 36982), (902, 22345), (1090, 18491), (1199, 16810), (1681, 11990), (2255, 8938), (2398, 8405), (3362, 5995), (4469, 4510)]