81079740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{281}}^1$

素因数の和:532

約数の個数: 144

約数和(自身を含む): 283308480

約数和(自身を除く): 202228740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 229, 252, 281, 315, 420, 458, 562, 630, 687, 843, 916, 1124, 1145, 1260, 1374, 1405, 1603, 1686, 1967, 2061, 2290, 2529, 2748, 2810, 3206, 3372, 3435, 3934, 4122, 4215, 4580, 4809, 5058, 5620, 5901, 6412, 6870, 7868, 8015, 8244, 8430, 9618, 9835, 10116, 10305, 11802, 12645, 13740, 14427, 16030, 16860, 17703, 19236, 19670, 20610, 23604, 24045, 25290, 28854, 29505, 32060, 35406, 39340, 41220, 48090, 50580, 57708, 59010, 64349, 70812, 72135, 88515, 96180, 118020, 128698, 144270, 177030, 193047, 257396, 288540, 321745, 354060, 386094, 450443, 579141, 643490, 772188, 900886, 965235, 1158282, 1286980, 1351329, 1801772, 1930470, 2252215, 2316564, 2702658, 2895705, 3860940, 4053987, 4504430, 5405316, 5791410, 6756645, 8107974, 9008860, 11582820, 13513290, 16215948, 20269935, 27026580, 40539870, 81079740]

約数ペア:

[(1, 81079740), (2, 40539870), (3, 27026580), (4, 20269935), (5, 16215948), (6, 13513290), (7, 11582820), (9, 9008860), (10, 8107974), (12, 6756645), (14, 5791410), (15, 5405316), (18, 4504430), (20, 4053987), (21, 3860940), (28, 2895705), (30, 2702658), (35, 2316564), (36, 2252215), (42, 1930470), (45, 1801772), (60, 1351329), (63, 1286980), (70, 1158282), (84, 965235), (90, 900886), (105, 772188), (126, 643490), (140, 579141), (180, 450443), (210, 386094), (229, 354060), (252, 321745), (281, 288540), (315, 257396), (420, 193047), (458, 177030), (562, 144270), (630, 128698), (687, 118020), (843, 96180), (916, 88515), (1124, 72135), (1145, 70812), (1260, 64349), (1374, 59010), (1405, 57708), (1603, 50580), (1686, 48090), (1967, 41220), (2061, 39340), (2290, 35406), (2529, 32060), (2748, 29505), (2810, 28854), (3206, 25290), (3372, 24045), (3435, 23604), (3934, 20610), (4122, 19670), (4215, 19236), (4580, 17703), (4809, 16860), (5058, 16030), (5620, 14427), (5901, 13740), (6412, 12645), (6870, 11802), (7868, 10305), (8015, 10116), (8244, 9835), (8430, 9618)]