20572480

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1213}}^1$

素因数の和:1283

約数の個数: 56

約数和(自身を含む): 49953672

約数和(自身を除く): 29381192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 160, 212, 265, 320, 424, 530, 848, 1060, 1213, 1696, 2120, 2426, 3392, 4240, 4852, 6065, 8480, 9704, 12130, 16960, 19408, 24260, 38816, 48520, 64289, 77632, 97040, 128578, 194080, 257156, 321445, 388160, 514312, 642890, 1028624, 1285780, 2057248, 2571560, 4114496, 5143120, 10286240, 20572480]

約数ペア:

[(1, 20572480), (2, 10286240), (4, 5143120), (5, 4114496), (8, 2571560), (10, 2057248), (16, 1285780), (20, 1028624), (32, 642890), (40, 514312), (53, 388160), (64, 321445), (80, 257156), (106, 194080), (160, 128578), (212, 97040), (265, 77632), (320, 64289), (424, 48520), (530, 38816), (848, 24260), (1060, 19408), (1213, 16960), (1696, 12130), (2120, 9704), (2426, 8480), (3392, 6065), (4240, 4852)]