8651020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1013}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 21123648

約数和(自身を除く): 12472628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1013, 1220, 1708, 2026, 2135, 4052, 4270, 5065, 7091, 8540, 10130, 14182, 20260, 28364, 35455, 61793, 70910, 123586, 141820, 247172, 308965, 432551, 617930, 865102, 1235860, 1730204, 2162755, 4325510, 8651020]

約数ペア:

[(1, 8651020), (2, 4325510), (4, 2162755), (5, 1730204), (7, 1235860), (10, 865102), (14, 617930), (20, 432551), (28, 308965), (35, 247172), (61, 141820), (70, 123586), (122, 70910), (140, 61793), (244, 35455), (305, 28364), (427, 20260), (610, 14182), (854, 10130), (1013, 8540), (1220, 7091), (1708, 5065), (2026, 4270), (2135, 4052)]