13551980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 31328640

約数和(自身を除く): 17776660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1109, 1222, 2218, 2444, 3055, 4436, 5545, 6110, 11090, 12220, 14417, 22180, 28834, 52123, 57668, 72085, 104246, 144170, 208492, 260615, 288340, 521230, 677599, 1042460, 1355198, 2710396, 3387995, 6775990, 13551980]

約数ペア:

[(1, 13551980), (2, 6775990), (4, 3387995), (5, 2710396), (10, 1355198), (13, 1042460), (20, 677599), (26, 521230), (47, 288340), (52, 260615), (65, 208492), (94, 144170), (130, 104246), (188, 72085), (235, 57668), (260, 52123), (470, 28834), (611, 22180), (940, 14417), (1109, 12220), (1222, 11090), (2218, 6110), (2444, 5545), (3055, 4436)]