13889980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 32203584

約数和(自身を除く): 18313604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1303, 2132, 2606, 2665, 5212, 5330, 6515, 10660, 13030, 16939, 26060, 33878, 53423, 67756, 84695, 106846, 169390, 213692, 267115, 338780, 534230, 694499, 1068460, 1388998, 2777996, 3472495, 6944990, 13889980]

約数ペア:

[(1, 13889980), (2, 6944990), (4, 3472495), (5, 2777996), (10, 1388998), (13, 1068460), (20, 694499), (26, 534230), (41, 338780), (52, 267115), (65, 213692), (82, 169390), (130, 106846), (164, 84695), (205, 67756), (260, 53423), (410, 33878), (533, 26060), (820, 16939), (1066, 13030), (1303, 10660), (2132, 6515), (2606, 5330), (2665, 5212)]