161570200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{271}}^2$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 411318540

約数和(自身を除く): 249748340

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 271, 275, 440, 542, 550, 1084, 1100, 1355, 2168, 2200, 2710, 2981, 5420, 5962, 6775, 10840, 11924, 13550, 14905, 23848, 27100, 29810, 54200, 59620, 73441, 74525, 119240, 146882, 149050, 293764, 298100, 367205, 587528, 596200, 734410, 807851, 1468820, 1615702, 1836025, 2937640, 3231404, 3672050, 4039255, 6462808, 7344100, 8078510, 14688200, 16157020, 20196275, 32314040, 40392550, 80785100, 161570200]

約数ペア:

[(1, 161570200), (2, 80785100), (4, 40392550), (5, 32314040), (8, 20196275), (10, 16157020), (11, 14688200), (20, 8078510), (22, 7344100), (25, 6462808), (40, 4039255), (44, 3672050), (50, 3231404), (55, 2937640), (88, 1836025), (100, 1615702), (110, 1468820), (200, 807851), (220, 734410), (271, 596200), (275, 587528), (440, 367205), (542, 298100), (550, 293764), (1084, 149050), (1100, 146882), (1355, 119240), (2168, 74525), (2200, 73441), (2710, 59620), (2981, 54200), (5420, 29810), (5962, 27100), (6775, 23848), (10840, 14905), (11924, 13550)]