20120409104

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{907}}^1\times {\mathrm{8831}}^1$

素因数の和:9903

約数の個数: 40

約数和(自身を含む): 39279295488

約数和(自身を除く): 19158886384

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 907, 1256, 1814, 2512, 3628, 7256, 8831, 14512, 17662, 35324, 70648, 141296, 142399, 284798, 569596, 1139192, 1386467, 2278384, 2772934, 5545868, 8009717, 11091736, 16019434, 22183472, 32038868, 64077736, 128155472, 1257525569, 2515051138, 5030102276, 10060204552, 20120409104]

約数ペア:

[(1, 20120409104), (2, 10060204552), (4, 5030102276), (8, 2515051138), (16, 1257525569), (157, 128155472), (314, 64077736), (628, 32038868), (907, 22183472), (1256, 16019434), (1814, 11091736), (2512, 8009717), (3628, 5545868), (7256, 2772934), (8831, 2278384), (14512, 1386467), (17662, 1139192), (35324, 569596), (70648, 284798), (141296, 142399)]