1331980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 3104640

約数和(自身を除く): 1772660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 109, 130, 188, 218, 235, 260, 436, 470, 545, 611, 940, 1090, 1222, 1417, 2180, 2444, 2834, 3055, 5123, 5668, 6110, 7085, 10246, 12220, 14170, 20492, 25615, 28340, 51230, 66599, 102460, 133198, 266396, 332995, 665990, 1331980]

約数ペア:

[(1, 1331980), (2, 665990), (4, 332995), (5, 266396), (10, 133198), (13, 102460), (20, 66599), (26, 51230), (47, 28340), (52, 25615), (65, 20492), (94, 14170), (109, 12220), (130, 10246), (188, 7085), (218, 6110), (235, 5668), (260, 5123), (436, 3055), (470, 2834), (545, 2444), (611, 2180), (940, 1417), (1090, 1222)]