29801980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1381}}^1$

素因数の和:1486

約数の個数: 48

約数和(自身を含む): 68259744

約数和(自身を除く): 38457764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 1079, 1381, 1660, 2158, 2762, 4316, 5395, 5524, 6905, 10790, 13810, 17953, 21580, 27620, 35906, 71812, 89765, 114623, 179530, 229246, 359060, 458492, 573115, 1146230, 1490099, 2292460, 2980198, 5960396, 7450495, 14900990, 29801980]

約数ペア:

[(1, 29801980), (2, 14900990), (4, 7450495), (5, 5960396), (10, 2980198), (13, 2292460), (20, 1490099), (26, 1146230), (52, 573115), (65, 458492), (83, 359060), (130, 229246), (166, 179530), (260, 114623), (332, 89765), (415, 71812), (830, 35906), (1079, 27620), (1381, 21580), (1660, 17953), (2158, 13810), (2762, 10790), (4316, 6905), (5395, 5524)]