778858520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{971}}^1\times {\mathrm{1823}}^1$

素因数の和:2816

約数の個数: 64

約数和(自身を含む): 1914762240

約数和(自身を除く): 1135903720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 971, 1823, 1942, 3646, 3884, 4855, 7292, 7768, 9115, 9710, 10681, 14584, 18230, 19420, 20053, 21362, 36460, 38840, 40106, 42724, 53405, 72920, 80212, 85448, 100265, 106810, 160424, 200530, 213620, 401060, 427240, 802120, 1770133, 3540266, 7080532, 8850665, 14161064, 17701330, 19471463, 35402660, 38942926, 70805320, 77885852, 97357315, 155771704, 194714630, 389429260, 778858520]

約数ペア:

[(1, 778858520), (2, 389429260), (4, 194714630), (5, 155771704), (8, 97357315), (10, 77885852), (11, 70805320), (20, 38942926), (22, 35402660), (40, 19471463), (44, 17701330), (55, 14161064), (88, 8850665), (110, 7080532), (220, 3540266), (440, 1770133), (971, 802120), (1823, 427240), (1942, 401060), (3646, 213620), (3884, 200530), (4855, 160424), (7292, 106810), (7768, 100265), (9115, 85448), (9710, 80212), (10681, 72920), (14584, 53405), (18230, 42724), (19420, 40106), (20053, 38840), (21362, 36460)]