640955280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{54503}}^1$

素因数の和:54533

約数の個数: 120

約数和(自身を含む): 2311405632

約数和(自身を除く): 1670450352

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1960, 2352, 2940, 3920, 5880, 11760, 54503, 109006, 163509, 218012, 272515, 327018, 381521, 436024, 545030, 654036, 763042, 817545, 872048, 1090060, 1144563, 1308072, 1526084, 1635090, 1907605, 2180120, 2289126, 2616144, 2670647, 3052168, 3270180, 3815210, 4360240, 4578252, 5341294, 5722815, 6104336, 6540360, 7630420, 8011941, 9156504, 10682588, 11445630, 13080720, 13353235, 15260840, 16023882, 18313008, 21365176, 22891260, 26706470, 30521680, 32047764, 40059705, 42730352, 45782520, 53412940, 64095528, 80119410, 91565040, 106825880, 128191056, 160238820, 213651760, 320477640, 640955280]

約数ペア:

[(1, 640955280), (2, 320477640), (3, 213651760), (4, 160238820), (5, 128191056), (6, 106825880), (7, 91565040), (8, 80119410), (10, 64095528), (12, 53412940), (14, 45782520), (15, 42730352), (16, 40059705), (20, 32047764), (21, 30521680), (24, 26706470), (28, 22891260), (30, 21365176), (35, 18313008), (40, 16023882), (42, 15260840), (48, 13353235), (49, 13080720), (56, 11445630), (60, 10682588), (70, 9156504), (80, 8011941), (84, 7630420), (98, 6540360), (105, 6104336), (112, 5722815), (120, 5341294), (140, 4578252), (147, 4360240), (168, 3815210), (196, 3270180), (210, 3052168), (240, 2670647), (245, 2616144), (280, 2289126), (294, 2180120), (336, 1907605), (392, 1635090), (420, 1526084), (490, 1308072), (560, 1144563), (588, 1090060), (735, 872048), (784, 817545), (840, 763042), (980, 654036), (1176, 545030), (1470, 436024), (1680, 381521), (1960, 327018), (2352, 272515), (2940, 218012), (3920, 163509), (5880, 109006), (11760, 54503)]