20612910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 55186560

約数和(自身を除く): 34573650

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 29, 30, 38, 43, 57, 58, 86, 87, 95, 114, 129, 145, 174, 190, 215, 258, 285, 290, 430, 435, 551, 570, 645, 817, 841, 870, 1102, 1247, 1290, 1634, 1653, 1682, 2451, 2494, 2523, 2755, 3306, 3741, 4085, 4205, 4902, 5046, 5510, 6235, 7482, 8170, 8265, 8410, 12255, 12470, 12615, 15979, 16530, 18705, 23693, 24510, 25230, 31958, 36163, 37410, 47386, 47937, 71079, 72326, 79895, 95874, 108489, 118465, 142158, 159790, 180815, 216978, 236930, 239685, 355395, 361630, 479370, 542445, 687097, 710790, 1084890, 1374194, 2061291, 3435485, 4122582, 6870970, 10306455, 20612910]

約数ペア:

[(1, 20612910), (2, 10306455), (3, 6870970), (5, 4122582), (6, 3435485), (10, 2061291), (15, 1374194), (19, 1084890), (29, 710790), (30, 687097), (38, 542445), (43, 479370), (57, 361630), (58, 355395), (86, 239685), (87, 236930), (95, 216978), (114, 180815), (129, 159790), (145, 142158), (174, 118465), (190, 108489), (215, 95874), (258, 79895), (285, 72326), (290, 71079), (430, 47937), (435, 47386), (551, 37410), (570, 36163), (645, 31958), (817, 25230), (841, 24510), (870, 23693), (1102, 18705), (1247, 16530), (1290, 15979), (1634, 12615), (1653, 12470), (1682, 12255), (2451, 8410), (2494, 8265), (2523, 8170), (2755, 7482), (3306, 6235), (3741, 5510), (4085, 5046), (4205, 4902)]