289471520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139169}}^1$

素因数の和:139197

約数の個数: 48

約数和(自身を含む): 736487640

約数和(自身を除く): 447016120

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, 139169, 278338, 556676, 695845, 1113352, 1391690, 1809197, 2226704, 2783380, 3618394, 4453408, 5566760, 7236788, 9045985, 11133520, 14473576, 18091970, 22267040, 28947152, 36183940, 57894304, 72367880, 144735760, 289471520]

約数ペア:

[(1, 289471520), (2, 144735760), (4, 72367880), (5, 57894304), (8, 36183940), (10, 28947152), (13, 22267040), (16, 18091970), (20, 14473576), (26, 11133520), (32, 9045985), (40, 7236788), (52, 5566760), (65, 4453408), (80, 3618394), (104, 2783380), (130, 2226704), (160, 1809197), (208, 1391690), (260, 1113352), (416, 695845), (520, 556676), (1040, 278338), (2080, 139169)]