642716760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{765139}}^1$

素因数の和:765160

約数の個数: 64

約数和(自身を含む): 2203603200

約数和(自身を除く): 1560886440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 765139, 1530278, 2295417, 3060556, 3825695, 4590834, 5355973, 6121112, 7651390, 9181668, 10711946, 11477085, 15302780, 16067919, 18363336, 21423892, 22954170, 26779865, 30605560, 32135838, 42847784, 45908340, 53559730, 64271676, 80339595, 91816680, 107119460, 128543352, 160679190, 214238920, 321358380, 642716760]

約数ペア:

[(1, 642716760), (2, 321358380), (3, 214238920), (4, 160679190), (5, 128543352), (6, 107119460), (7, 91816680), (8, 80339595), (10, 64271676), (12, 53559730), (14, 45908340), (15, 42847784), (20, 32135838), (21, 30605560), (24, 26779865), (28, 22954170), (30, 21423892), (35, 18363336), (40, 16067919), (42, 15302780), (56, 11477085), (60, 10711946), (70, 9181668), (84, 7651390), (105, 6121112), (120, 5355973), (140, 4590834), (168, 3825695), (210, 3060556), (280, 2295417), (420, 1530278), (840, 765139)]