20115721820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{151451}}^1$

素因数の和:151718

約数の個数: 48

約数和(自身を含む): 43890789600

約数和(自身を除く): 23775067780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 229, 290, 458, 580, 916, 1145, 2290, 4580, 6641, 13282, 26564, 33205, 66410, 132820, 151451, 302902, 605804, 757255, 1514510, 3029020, 4392079, 8784158, 17568316, 21960395, 34682279, 43920790, 69364558, 87841580, 138729116, 173411395, 346822790, 693645580, 1005786091, 2011572182, 4023144364, 5028930455, 10057860910, 20115721820]

約数ペア:

[(1, 20115721820), (2, 10057860910), (4, 5028930455), (5, 4023144364), (10, 2011572182), (20, 1005786091), (29, 693645580), (58, 346822790), (116, 173411395), (145, 138729116), (229, 87841580), (290, 69364558), (458, 43920790), (580, 34682279), (916, 21960395), (1145, 17568316), (2290, 8784158), (4580, 4392079), (6641, 3029020), (13282, 1514510), (26564, 757255), (33205, 605804), (66410, 302902), (132820, 151451)]