129756760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 347120640

約数和(自身を除く): 217363880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 71, 107, 122, 140, 142, 214, 244, 280, 284, 305, 355, 427, 428, 488, 497, 535, 568, 610, 710, 749, 854, 856, 994, 1070, 1220, 1420, 1498, 1708, 1988, 2135, 2140, 2440, 2485, 2840, 2996, 3416, 3745, 3976, 4270, 4280, 4331, 4970, 5992, 6527, 7490, 7597, 8540, 8662, 9940, 13054, 14980, 15194, 17080, 17324, 19880, 21655, 26108, 29960, 30317, 30388, 32635, 34648, 37985, 43310, 45689, 52216, 53179, 60634, 60776, 65270, 75970, 86620, 91378, 106358, 121268, 130540, 151585, 151940, 173240, 182756, 212716, 228445, 242536, 261080, 265895, 303170, 303880, 365512, 425432, 456890, 463417, 531790, 606340, 913780, 926834, 1063580, 1212680, 1827560, 1853668, 2127160, 2317085, 3243919, 3707336, 4634170, 6487838, 9268340, 12975676, 16219595, 18536680, 25951352, 32439190, 64878380, 129756760]

約数ペア:

[(1, 129756760), (2, 64878380), (4, 32439190), (5, 25951352), (7, 18536680), (8, 16219595), (10, 12975676), (14, 9268340), (20, 6487838), (28, 4634170), (35, 3707336), (40, 3243919), (56, 2317085), (61, 2127160), (70, 1853668), (71, 1827560), (107, 1212680), (122, 1063580), (140, 926834), (142, 913780), (214, 606340), (244, 531790), (280, 463417), (284, 456890), (305, 425432), (355, 365512), (427, 303880), (428, 303170), (488, 265895), (497, 261080), (535, 242536), (568, 228445), (610, 212716), (710, 182756), (749, 173240), (854, 151940), (856, 151585), (994, 130540), (1070, 121268), (1220, 106358), (1420, 91378), (1498, 86620), (1708, 75970), (1988, 65270), (2135, 60776), (2140, 60634), (2440, 53179), (2485, 52216), (2840, 45689), (2996, 43310), (3416, 37985), (3745, 34648), (3976, 32635), (4270, 30388), (4280, 30317), (4331, 29960), (4970, 26108), (5992, 21655), (6527, 19880), (7490, 17324), (7597, 17080), (8540, 15194), (8662, 14980), (9940, 13054)]