20318340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6911}}^1$

素因数の和:6937

約数の個数: 72

約数和(自身を含む): 66189312

約数和(自身を除く): 45870972

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6911, 13822, 20733, 27644, 34555, 41466, 48377, 69110, 82932, 96754, 103665, 138220, 145131, 193508, 207330, 241885, 290262, 338639, 414660, 483770, 580524, 677278, 725655, 967540, 1015917, 1354556, 1451310, 1693195, 2031834, 2902620, 3386390, 4063668, 5079585, 6772780, 10159170, 20318340]

約数ペア:

[(1, 20318340), (2, 10159170), (3, 6772780), (4, 5079585), (5, 4063668), (6, 3386390), (7, 2902620), (10, 2031834), (12, 1693195), (14, 1451310), (15, 1354556), (20, 1015917), (21, 967540), (28, 725655), (30, 677278), (35, 580524), (42, 483770), (49, 414660), (60, 338639), (70, 290262), (84, 241885), (98, 207330), (105, 193508), (140, 145131), (147, 138220), (196, 103665), (210, 96754), (245, 82932), (294, 69110), (420, 48377), (490, 41466), (588, 34555), (735, 27644), (980, 20733), (1470, 13822), (2940, 6911)]