31306420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 67995648

約数和(自身を除く): 36689228

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 122, 134, 244, 268, 305, 335, 383, 610, 670, 766, 1220, 1340, 1532, 1915, 3830, 4087, 7660, 8174, 16348, 20435, 23363, 25661, 40870, 46726, 51322, 81740, 93452, 102644, 116815, 128305, 233630, 256610, 467260, 513220, 1565321, 3130642, 6261284, 7826605, 15653210, 31306420]

約数ペア:

[(1, 31306420), (2, 15653210), (4, 7826605), (5, 6261284), (10, 3130642), (20, 1565321), (61, 513220), (67, 467260), (122, 256610), (134, 233630), (244, 128305), (268, 116815), (305, 102644), (335, 93452), (383, 81740), (610, 51322), (670, 46726), (766, 40870), (1220, 25661), (1340, 23363), (1532, 20435), (1915, 16348), (3830, 8174), (4087, 7660)]