12558719980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{1249}}^1$

素因数の和:1499

約数の個数: 96

約数和(自身を含む): 27412560000

約数和(自身を除く): 14853840020

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 97, 142, 146, 194, 284, 292, 355, 365, 388, 485, 710, 730, 970, 1249, 1420, 1460, 1940, 2498, 4996, 5183, 6245, 6887, 7081, 10366, 12490, 13774, 14162, 20732, 24980, 25915, 27548, 28324, 34435, 35405, 51830, 68870, 70810, 88679, 91177, 103660, 121153, 137740, 141620, 177358, 182354, 242306, 354716, 364708, 443395, 455885, 484612, 502751, 605765, 886790, 911770, 1005502, 1211530, 1773580, 1823540, 2011004, 2423060, 2513755, 5027510, 6473567, 8601863, 8844169, 10055020, 12947134, 17203726, 17688338, 25894268, 32367835, 34407452, 35376676, 43009315, 44220845, 64735670, 86018630, 88441690, 129471340, 172037260, 176883380, 627935999, 1255871998, 2511743996, 3139679995, 6279359990, 12558719980]

約数ペア:

[(1, 12558719980), (2, 6279359990), (4, 3139679995), (5, 2511743996), (10, 1255871998), (20, 627935999), (71, 176883380), (73, 172037260), (97, 129471340), (142, 88441690), (146, 86018630), (194, 64735670), (284, 44220845), (292, 43009315), (355, 35376676), (365, 34407452), (388, 32367835), (485, 25894268), (710, 17688338), (730, 17203726), (970, 12947134), (1249, 10055020), (1420, 8844169), (1460, 8601863), (1940, 6473567), (2498, 5027510), (4996, 2513755), (5183, 2423060), (6245, 2011004), (6887, 1823540), (7081, 1773580), (10366, 1211530), (12490, 1005502), (13774, 911770), (14162, 886790), (20732, 605765), (24980, 502751), (25915, 484612), (27548, 455885), (28324, 443395), (34435, 364708), (35405, 354716), (51830, 242306), (68870, 182354), (70810, 177358), (88679, 141620), (91177, 137740), (103660, 121153)]