820042460

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{7459}}^1$

素因数の和:7730

約数の個数: 48

約数和(自身を含む): 1804723200

約数和(自身を除く): 984680740

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 239, 460, 478, 956, 1195, 2390, 4780, 5497, 7459, 10994, 14918, 21988, 27485, 29836, 37295, 54970, 74590, 109940, 149180, 171557, 343114, 686228, 857785, 1715570, 1782701, 3431140, 3565402, 7130804, 8913505, 17827010, 35654020, 41002123, 82004246, 164008492, 205010615, 410021230, 820042460]

約数ペア:

[(1, 820042460), (2, 410021230), (4, 205010615), (5, 164008492), (10, 82004246), (20, 41002123), (23, 35654020), (46, 17827010), (92, 8913505), (115, 7130804), (230, 3565402), (239, 3431140), (460, 1782701), (478, 1715570), (956, 857785), (1195, 686228), (2390, 343114), (4780, 171557), (5497, 149180), (7459, 109940), (10994, 74590), (14918, 54970), (21988, 37295), (27485, 29836)]