19877440

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5647}}^1$

素因数の和:5675

約数の個数: 56

約数和(自身を含む): 51645312

約数和(自身を除く): 31767872

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5647, 11294, 22588, 28235, 45176, 56470, 62117, 90352, 112940, 124234, 180704, 225880, 248468, 310585, 361408, 451760, 496936, 621170, 903520, 993872, 1242340, 1807040, 1987744, 2484680, 3975488, 4969360, 9938720, 19877440]

約数ペア:

[(1, 19877440), (2, 9938720), (4, 4969360), (5, 3975488), (8, 2484680), (10, 1987744), (11, 1807040), (16, 1242340), (20, 993872), (22, 903520), (32, 621170), (40, 496936), (44, 451760), (55, 361408), (64, 310585), (80, 248468), (88, 225880), (110, 180704), (160, 124234), (176, 112940), (220, 90352), (320, 62117), (352, 56470), (440, 45176), (704, 28235), (880, 22588), (1760, 11294), (3520, 5647)]