8173220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{383}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 18966528

約数和(自身を除く): 10793308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 383, 388, 485, 766, 970, 1067, 1532, 1915, 1940, 2134, 3830, 4213, 4268, 5335, 7660, 8426, 10670, 16852, 21065, 21340, 37151, 42130, 74302, 84260, 148604, 185755, 371510, 408661, 743020, 817322, 1634644, 2043305, 4086610, 8173220]

約数ペア:

[(1, 8173220), (2, 4086610), (4, 2043305), (5, 1634644), (10, 817322), (11, 743020), (20, 408661), (22, 371510), (44, 185755), (55, 148604), (97, 84260), (110, 74302), (194, 42130), (220, 37151), (383, 21340), (388, 21065), (485, 16852), (766, 10670), (970, 8426), (1067, 7660), (1532, 5335), (1915, 4268), (1940, 4213), (2134, 3830)]