20071424140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{208253}}^1$

素因数の和:208402

約数の個数: 48

約数和(自身を含む): 43383473280

約数和(自身を除く): 23312049140

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 305, 316, 395, 610, 790, 1220, 1580, 4819, 9638, 19276, 24095, 48190, 96380, 208253, 416506, 833012, 1041265, 2082530, 4165060, 12703433, 16451987, 25406866, 32903974, 50813732, 63517165, 65807948, 82259935, 127034330, 164519870, 254068660, 329039740, 1003571207, 2007142414, 4014284828, 5017856035, 10035712070, 20071424140]

約数ペア:

[(1, 20071424140), (2, 10035712070), (4, 5017856035), (5, 4014284828), (10, 2007142414), (20, 1003571207), (61, 329039740), (79, 254068660), (122, 164519870), (158, 127034330), (244, 82259935), (305, 65807948), (316, 63517165), (395, 50813732), (610, 32903974), (790, 25406866), (1220, 16451987), (1580, 12703433), (4819, 4165060), (9638, 2082530), (19276, 1041265), (24095, 833012), (48190, 416506), (96380, 208253)]