30806620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2521}}^1$

素因数の和:2590

約数の個数: 48

約数和(自身を含む): 71180928

約数和(自身を除く): 40374308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 2521, 3055, 5042, 6110, 10084, 12220, 12605, 25210, 32773, 50420, 65546, 118487, 131092, 163865, 236974, 327730, 473948, 592435, 655460, 1184870, 1540331, 2369740, 3080662, 6161324, 7701655, 15403310, 30806620]

約数ペア:

[(1, 30806620), (2, 15403310), (4, 7701655), (5, 6161324), (10, 3080662), (13, 2369740), (20, 1540331), (26, 1184870), (47, 655460), (52, 592435), (65, 473948), (94, 327730), (130, 236974), (188, 163865), (235, 131092), (260, 118487), (470, 65546), (611, 50420), (940, 32773), (1222, 25210), (2444, 12605), (2521, 12220), (3055, 10084), (5042, 6110)]