20181276050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{48437}}^1$

素因数の和:49103

約数の個数: 48

約数和(自身を含む): 40488549192

約数和(自身を除く): 20307273142

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 641, 650, 1282, 3205, 6410, 8333, 16025, 16666, 32050, 41665, 48437, 83330, 96874, 208325, 242185, 416650, 484370, 629681, 1210925, 1259362, 2421850, 3148405, 6296810, 15742025, 31048117, 31484050, 62096234, 155240585, 310481170, 403625521, 776202925, 807251042, 1552405850, 2018127605, 4036255210, 10090638025, 20181276050]

約数ペア:

[(1, 20181276050), (2, 10090638025), (5, 4036255210), (10, 2018127605), (13, 1552405850), (25, 807251042), (26, 776202925), (50, 403625521), (65, 310481170), (130, 155240585), (325, 62096234), (641, 31484050), (650, 31048117), (1282, 15742025), (3205, 6296810), (6410, 3148405), (8333, 2421850), (16025, 1259362), (16666, 1210925), (32050, 629681), (41665, 484370), (48437, 416650), (83330, 242185), (96874, 208325)]