123572020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43207}}^1$

素因数の和:43240

約数の個数: 48

約数和(自身を含む): 304875648

約数和(自身を除く): 181303628

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 43207, 86414, 172828, 216035, 432070, 475277, 561691, 864140, 950554, 1123382, 1901108, 2246764, 2376385, 2808455, 4752770, 5616910, 6178601, 9505540, 11233820, 12357202, 24714404, 30893005, 61786010, 123572020]

約数ペア:

[(1, 123572020), (2, 61786010), (4, 30893005), (5, 24714404), (10, 12357202), (11, 11233820), (13, 9505540), (20, 6178601), (22, 5616910), (26, 4752770), (44, 2808455), (52, 2376385), (55, 2246764), (65, 1901108), (110, 1123382), (130, 950554), (143, 864140), (220, 561691), (260, 475277), (286, 432070), (572, 216035), (715, 172828), (1430, 86414), (2860, 43207)]