20733680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23561}}^1$

素因数の和:23585

約数の個数: 40

約数和(自身を含む): 52590384

約数和(自身を除く): 31856704

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23561, 47122, 94244, 117805, 188488, 235610, 259171, 376976, 471220, 518342, 942440, 1036684, 1295855, 1884880, 2073368, 2591710, 4146736, 5183420, 10366840, 20733680]

約数ペア:

[(1, 20733680), (2, 10366840), (4, 5183420), (5, 4146736), (8, 2591710), (10, 2073368), (11, 1884880), (16, 1295855), (20, 1036684), (22, 942440), (40, 518342), (44, 471220), (55, 376976), (80, 259171), (88, 235610), (110, 188488), (176, 117805), (220, 94244), (440, 47122), (880, 23561)]