20261450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:248

約数の個数: 72

約数和(自身を含む): 44083116

約数和(自身を除く): 23821666

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 121, 170, 187, 197, 242, 275, 374, 394, 425, 550, 605, 850, 935, 985, 1210, 1870, 1970, 2057, 2167, 3025, 3349, 4114, 4334, 4675, 4925, 6050, 6698, 9350, 9850, 10285, 10835, 16745, 20570, 21670, 23837, 33490, 36839, 47674, 51425, 54175, 73678, 83725, 102850, 108350, 119185, 167450, 184195, 238370, 368390, 405229, 595925, 810458, 920975, 1191850, 1841950, 2026145, 4052290, 10130725, 20261450]

約数ペア:

[(1, 20261450), (2, 10130725), (5, 4052290), (10, 2026145), (11, 1841950), (17, 1191850), (22, 920975), (25, 810458), (34, 595925), (50, 405229), (55, 368390), (85, 238370), (110, 184195), (121, 167450), (170, 119185), (187, 108350), (197, 102850), (242, 83725), (275, 73678), (374, 54175), (394, 51425), (425, 47674), (550, 36839), (605, 33490), (850, 23837), (935, 21670), (985, 20570), (1210, 16745), (1870, 10835), (1970, 10285), (2057, 9850), (2167, 9350), (3025, 6698), (3349, 6050), (4114, 4925), (4334, 4675)]