18906260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:956

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 23323900

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 881, 1073, 1762, 2146, 3524, 4292, 4405, 5365, 8810, 10730, 17620, 21460, 25549, 32597, 51098, 65194, 102196, 127745, 130388, 162985, 255490, 325970, 510980, 651940, 945313, 1890626, 3781252, 4726565, 9453130, 18906260]

約数ペア:

[(1, 18906260), (2, 9453130), (4, 4726565), (5, 3781252), (10, 1890626), (20, 945313), (29, 651940), (37, 510980), (58, 325970), (74, 255490), (116, 162985), (145, 130388), (148, 127745), (185, 102196), (290, 65194), (370, 51098), (580, 32597), (740, 25549), (881, 21460), (1073, 17620), (1762, 10730), (2146, 8810), (3524, 5365), (4292, 4405)]