218720840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3931}}^1$

素因数の和:4062

約数の個数: 64

約数和(自身を含む): 535066560

約数和(自身を除く): 316345720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 107, 130, 214, 260, 428, 520, 535, 856, 1070, 1391, 2140, 2782, 3931, 4280, 5564, 6955, 7862, 11128, 13910, 15724, 19655, 27820, 31448, 39310, 51103, 55640, 78620, 102206, 157240, 204412, 255515, 408824, 420617, 511030, 841234, 1022060, 1682468, 2044120, 2103085, 3364936, 4206170, 5468021, 8412340, 10936042, 16824680, 21872084, 27340105, 43744168, 54680210, 109360420, 218720840]

約数ペア:

[(1, 218720840), (2, 109360420), (4, 54680210), (5, 43744168), (8, 27340105), (10, 21872084), (13, 16824680), (20, 10936042), (26, 8412340), (40, 5468021), (52, 4206170), (65, 3364936), (104, 2103085), (107, 2044120), (130, 1682468), (214, 1022060), (260, 841234), (428, 511030), (520, 420617), (535, 408824), (856, 255515), (1070, 204412), (1391, 157240), (2140, 102206), (2782, 78620), (3931, 55640), (4280, 51103), (5564, 39310), (6955, 31448), (7862, 27820), (11128, 19655), (13910, 15724)]