16518420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:741

約数の個数: 72

約数和(自身を含む): 50502816

約数和(自身を除く): 33984396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 563, 652, 815, 978, 1126, 1467, 1630, 1689, 1956, 2252, 2445, 2815, 2934, 3260, 3378, 4890, 5067, 5630, 5868, 6756, 7335, 8445, 9780, 10134, 11260, 14670, 16890, 20268, 25335, 29340, 33780, 50670, 91769, 101340, 183538, 275307, 367076, 458845, 550614, 825921, 917690, 1101228, 1376535, 1651842, 1835380, 2753070, 3303684, 4129605, 5506140, 8259210, 16518420]

約数ペア:

[(1, 16518420), (2, 8259210), (3, 5506140), (4, 4129605), (5, 3303684), (6, 2753070), (9, 1835380), (10, 1651842), (12, 1376535), (15, 1101228), (18, 917690), (20, 825921), (30, 550614), (36, 458845), (45, 367076), (60, 275307), (90, 183538), (163, 101340), (180, 91769), (326, 50670), (489, 33780), (563, 29340), (652, 25335), (815, 20268), (978, 16890), (1126, 14670), (1467, 11260), (1630, 10134), (1689, 9780), (1956, 8445), (2252, 7335), (2445, 6756), (2815, 5868), (2934, 5630), (3260, 5067), (3378, 4890)]