137720380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1579}}^1$

素因数の和:1691

約数の個数: 72

約数和(自身を含む): 340426800

約数和(自身を除く): 202706420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1579, 1780, 2492, 3115, 3158, 4361, 6230, 6316, 7895, 8722, 11053, 12460, 15790, 17444, 21805, 22106, 31580, 43610, 44212, 55265, 77371, 87220, 110530, 140531, 154742, 221060, 281062, 309484, 386855, 562124, 702655, 773710, 983717, 1405310, 1547420, 1967434, 2810620, 3934868, 4918585, 6886019, 9837170, 13772038, 19674340, 27544076, 34430095, 68860190, 137720380]

約数ペア:

[(1, 137720380), (2, 68860190), (4, 34430095), (5, 27544076), (7, 19674340), (10, 13772038), (14, 9837170), (20, 6886019), (28, 4918585), (35, 3934868), (49, 2810620), (70, 1967434), (89, 1547420), (98, 1405310), (140, 983717), (178, 773710), (196, 702655), (245, 562124), (356, 386855), (445, 309484), (490, 281062), (623, 221060), (890, 154742), (980, 140531), (1246, 110530), (1579, 87220), (1780, 77371), (2492, 55265), (3115, 44212), (3158, 43610), (4361, 31580), (6230, 22106), (6316, 21805), (7895, 17444), (8722, 15790), (11053, 12460)]