20974865470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1277}}^1\times {\mathrm{9719}}^1$

素因数の和:11029

約数の個数: 48

約数和(自身を含む): 40918595040

約数和(自身を除く): 19943729570

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1277, 1690, 2554, 6385, 9719, 12770, 16601, 19438, 33202, 48595, 83005, 97190, 126347, 166010, 215813, 252694, 431626, 631735, 1079065, 1263470, 1642511, 2158130, 3285022, 8212555, 12411163, 16425110, 24822326, 62055815, 124111630, 161345119, 322690238, 806725595, 1613451190, 2097486547, 4194973094, 10487432735, 20974865470]

約数ペア:

[(1, 20974865470), (2, 10487432735), (5, 4194973094), (10, 2097486547), (13, 1613451190), (26, 806725595), (65, 322690238), (130, 161345119), (169, 124111630), (338, 62055815), (845, 24822326), (1277, 16425110), (1690, 12411163), (2554, 8212555), (6385, 3285022), (9719, 2158130), (12770, 1642511), (16601, 1263470), (19438, 1079065), (33202, 631735), (48595, 431626), (83005, 252694), (97190, 215813), (126347, 166010)]