28284880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27197}}^1$

素因数の和:27223

約数の個数: 40

約数和(自身を含む): 70823592

約数和(自身を除く): 42538712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27197, 54394, 108788, 135985, 217576, 271970, 353561, 435152, 543940, 707122, 1087880, 1414244, 1767805, 2175760, 2828488, 3535610, 5656976, 7071220, 14142440, 28284880]

約数ペア:

[(1, 28284880), (2, 14142440), (4, 7071220), (5, 5656976), (8, 3535610), (10, 2828488), (13, 2175760), (16, 1767805), (20, 1414244), (26, 1087880), (40, 707122), (52, 543940), (65, 435152), (80, 353561), (104, 271970), (130, 217576), (208, 135985), (260, 108788), (520, 54394), (1040, 27197)]