636950020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{3631}}^1$

素因数の和:3833

約数の個数: 72

約数和(自身を含む): 1565101440

約数和(自身を除く): 928151420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 179, 196, 245, 358, 490, 716, 895, 980, 1253, 1790, 2506, 3580, 3631, 5012, 6265, 7262, 8771, 12530, 14524, 17542, 18155, 25060, 25417, 35084, 36310, 43855, 50834, 72620, 87710, 101668, 127085, 175420, 177919, 254170, 355838, 508340, 649949, 711676, 889595, 1299898, 1779190, 2599796, 3249745, 3558380, 4549643, 6499490, 9099286, 12998980, 18198572, 22748215, 31847501, 45496430, 63695002, 90992860, 127390004, 159237505, 318475010, 636950020]

約数ペア:

[(1, 636950020), (2, 318475010), (4, 159237505), (5, 127390004), (7, 90992860), (10, 63695002), (14, 45496430), (20, 31847501), (28, 22748215), (35, 18198572), (49, 12998980), (70, 9099286), (98, 6499490), (140, 4549643), (179, 3558380), (196, 3249745), (245, 2599796), (358, 1779190), (490, 1299898), (716, 889595), (895, 711676), (980, 649949), (1253, 508340), (1790, 355838), (2506, 254170), (3580, 177919), (3631, 175420), (5012, 127085), (6265, 101668), (7262, 87710), (8771, 72620), (12530, 50834), (14524, 43855), (17542, 36310), (18155, 35084), (25060, 25417)]