220086920

素因数分解:

$2^3\times 5^1\times {\mathrm{1787}}^1\times {\mathrm{3079}}^1$

素因数の和:4877

約数の個数: 32

約数和(自身を含む): 495633600

約数和(自身を除く): 275546680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1787, 3079, 3574, 6158, 7148, 8935, 12316, 14296, 15395, 17870, 24632, 30790, 35740, 61580, 71480, 123160, 5502173, 11004346, 22008692, 27510865, 44017384, 55021730, 110043460, 220086920]

約数ペア:

[(1, 220086920), (2, 110043460), (4, 55021730), (5, 44017384), (8, 27510865), (10, 22008692), (20, 11004346), (40, 5502173), (1787, 123160), (3079, 71480), (3574, 61580), (6158, 35740), (7148, 30790), (8935, 24632), (12316, 17870), (14296, 15395)]