20939360

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10067}}^1$

素因数の和:10095

約数の個数: 48

約数和(自身を含む): 53279856

約数和(自身を除く): 32340496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 10067, 20134, 40268, 50335, 80536, 100670, 130871, 161072, 201340, 261742, 322144, 402680, 523484, 654355, 805360, 1046968, 1308710, 1610720, 2093936, 2617420, 4187872, 5234840, 10469680, 20939360]

約数ペア:

[(1, 20939360), (2, 10469680), (4, 5234840), (5, 4187872), (8, 2617420), (10, 2093936), (13, 1610720), (16, 1308710), (20, 1046968), (26, 805360), (32, 654355), (40, 523484), (52, 402680), (65, 322144), (80, 261742), (104, 201340), (130, 161072), (160, 130871), (208, 100670), (260, 80536), (416, 50335), (520, 40268), (1040, 20134), (2080, 10067)]