28489760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13697}}^1$

素因数の和:13725

約数の個数: 48

約数和(自身を含む): 72489816

約数和(自身を除く): 44000056

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, 13697, 27394, 54788, 68485, 109576, 136970, 178061, 219152, 273940, 356122, 438304, 547880, 712244, 890305, 1095760, 1424488, 1780610, 2191520, 2848976, 3561220, 5697952, 7122440, 14244880, 28489760]

約数ペア:

[(1, 28489760), (2, 14244880), (4, 7122440), (5, 5697952), (8, 3561220), (10, 2848976), (13, 2191520), (16, 1780610), (20, 1424488), (26, 1095760), (32, 890305), (40, 712244), (52, 547880), (65, 438304), (80, 356122), (104, 273940), (130, 219152), (160, 178061), (208, 136970), (260, 109576), (416, 68485), (520, 54788), (1040, 27394), (2080, 13697)]