17999820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:333

約数の個数: 120

約数和(自身を含む): 58056768

約数和(自身を除く): 40056948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 81, 82, 90, 108, 123, 135, 162, 164, 180, 205, 246, 270, 271, 324, 369, 405, 410, 492, 540, 542, 615, 738, 810, 813, 820, 1084, 1107, 1230, 1355, 1476, 1620, 1626, 1845, 2214, 2439, 2460, 2710, 3252, 3321, 3690, 4065, 4428, 4878, 5420, 5535, 6642, 7317, 7380, 8130, 9756, 11070, 11111, 12195, 13284, 14634, 16260, 16605, 21951, 22140, 22222, 24390, 29268, 33210, 33333, 36585, 43902, 44444, 48780, 55555, 66420, 66666, 73170, 87804, 99999, 109755, 111110, 133332, 146340, 166665, 199998, 219510, 222220, 299997, 333330, 399996, 439020, 499995, 599994, 666660, 899991, 999990, 1199988, 1499985, 1799982, 1999980, 2999970, 3599964, 4499955, 5999940, 8999910, 17999820]

約数ペア:

[(1, 17999820), (2, 8999910), (3, 5999940), (4, 4499955), (5, 3599964), (6, 2999970), (9, 1999980), (10, 1799982), (12, 1499985), (15, 1199988), (18, 999990), (20, 899991), (27, 666660), (30, 599994), (36, 499995), (41, 439020), (45, 399996), (54, 333330), (60, 299997), (81, 222220), (82, 219510), (90, 199998), (108, 166665), (123, 146340), (135, 133332), (162, 111110), (164, 109755), (180, 99999), (205, 87804), (246, 73170), (270, 66666), (271, 66420), (324, 55555), (369, 48780), (405, 44444), (410, 43902), (492, 36585), (540, 33333), (542, 33210), (615, 29268), (738, 24390), (810, 22222), (813, 22140), (820, 21951), (1084, 16605), (1107, 16260), (1230, 14634), (1355, 13284), (1476, 12195), (1620, 11111), (1626, 11070), (1845, 9756), (2214, 8130), (2439, 7380), (2460, 7317), (2710, 6642), (3252, 5535), (3321, 5420), (3690, 4878), (4065, 4428)]