20704148972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{329873}}^1$

素因数の和:329978

約数の個数: 48

約数和(自身を含む): 41896636992

約数和(自身を除く): 21192488020

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 71, 142, 221, 284, 442, 884, 923, 1207, 1846, 2414, 3692, 4828, 15691, 31382, 62764, 329873, 659746, 1319492, 4288349, 5607841, 8576698, 11215682, 17153396, 22431364, 23420983, 46841966, 72901933, 93683932, 145803866, 291607732, 304472779, 398156711, 608945558, 796313422, 1217891116, 1592626844, 5176037243, 10352074486, 20704148972]

約数ペア:

[(1, 20704148972), (2, 10352074486), (4, 5176037243), (13, 1592626844), (17, 1217891116), (26, 796313422), (34, 608945558), (52, 398156711), (68, 304472779), (71, 291607732), (142, 145803866), (221, 93683932), (284, 72901933), (442, 46841966), (884, 23420983), (923, 22431364), (1207, 17153396), (1846, 11215682), (2414, 8576698), (3692, 5607841), (4828, 4288349), (15691, 1319492), (31382, 659746), (62764, 329873)]