20943120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7933}}^1$

素因数の和:7960

約数の個数: 80

約数和(自身を含む): 70834752

約数和(自身を除く): 49891632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7933, 15866, 23799, 31732, 39665, 47598, 63464, 79330, 87263, 95196, 118995, 126928, 158660, 174526, 190392, 237990, 261789, 317320, 349052, 380784, 436315, 475980, 523578, 634640, 698104, 872630, 951960, 1047156, 1308945, 1396208, 1745260, 1903920, 2094312, 2617890, 3490520, 4188624, 5235780, 6981040, 10471560, 20943120]

約数ペア:

[(1, 20943120), (2, 10471560), (3, 6981040), (4, 5235780), (5, 4188624), (6, 3490520), (8, 2617890), (10, 2094312), (11, 1903920), (12, 1745260), (15, 1396208), (16, 1308945), (20, 1047156), (22, 951960), (24, 872630), (30, 698104), (33, 634640), (40, 523578), (44, 475980), (48, 436315), (55, 380784), (60, 349052), (66, 317320), (80, 261789), (88, 237990), (110, 190392), (120, 174526), (132, 158660), (165, 126928), (176, 118995), (220, 95196), (240, 87263), (264, 79330), (330, 63464), (440, 47598), (528, 39665), (660, 31732), (880, 23799), (1320, 15866), (2640, 7933)]