31815180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:541

約数の個数: 120

約数和(自身を含む): 102453120

約数和(自身を除く): 70637940

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, 324, 369, 405, 410, 479, 492, 540, 615, 738, 810, 820, 958, 1107, 1230, 1437, 1476, 1620, 1845, 1916, 2214, 2395, 2460, 2874, 3321, 3690, 4311, 4428, 4790, 5535, 5748, 6642, 7185, 7380, 8622, 9580, 11070, 12933, 13284, 14370, 16605, 17244, 19639, 21555, 22140, 25866, 28740, 33210, 38799, 39278, 43110, 51732, 58917, 64665, 66420, 77598, 78556, 86220, 98195, 117834, 129330, 155196, 176751, 193995, 196390, 235668, 258660, 294585, 353502, 387990, 392780, 530253, 589170, 707004, 775980, 883755, 1060506, 1178340, 1590759, 1767510, 2121012, 2651265, 3181518, 3535020, 5302530, 6363036, 7953795, 10605060, 15907590, 31815180]

約数ペア:

[(1, 31815180), (2, 15907590), (3, 10605060), (4, 7953795), (5, 6363036), (6, 5302530), (9, 3535020), (10, 3181518), (12, 2651265), (15, 2121012), (18, 1767510), (20, 1590759), (27, 1178340), (30, 1060506), (36, 883755), (41, 775980), (45, 707004), (54, 589170), (60, 530253), (81, 392780), (82, 387990), (90, 353502), (108, 294585), (123, 258660), (135, 235668), (162, 196390), (164, 193995), (180, 176751), (205, 155196), (246, 129330), (270, 117834), (324, 98195), (369, 86220), (405, 78556), (410, 77598), (479, 66420), (492, 64665), (540, 58917), (615, 51732), (738, 43110), (810, 39278), (820, 38799), (958, 33210), (1107, 28740), (1230, 25866), (1437, 22140), (1476, 21555), (1620, 19639), (1845, 17244), (1916, 16605), (2214, 14370), (2395, 13284), (2460, 12933), (2874, 11070), (3321, 9580), (3690, 8622), (4311, 7380), (4428, 7185), (4790, 6642), (5535, 5748)]