68321680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:657

約数の個数: 120

約数和(自身を含む): 191472120

約数和(自身を除く): 123150440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 49, 56, 58, 70, 80, 98, 112, 116, 140, 145, 196, 203, 232, 245, 280, 290, 392, 406, 464, 490, 560, 580, 601, 784, 812, 980, 1015, 1160, 1202, 1421, 1624, 1960, 2030, 2320, 2404, 2842, 3005, 3248, 3920, 4060, 4207, 4808, 5684, 6010, 7105, 8120, 8414, 9616, 11368, 12020, 14210, 16240, 16828, 17429, 21035, 22736, 24040, 28420, 29449, 33656, 34858, 42070, 48080, 56840, 58898, 67312, 69716, 84140, 87145, 113680, 117796, 122003, 139432, 147245, 168280, 174290, 235592, 244006, 278864, 294490, 336560, 348580, 471184, 488012, 588980, 610015, 697160, 854021, 976024, 1177960, 1220030, 1394320, 1708042, 1952048, 2355920, 2440060, 3416084, 4270105, 4880120, 6832168, 8540210, 9760240, 13664336, 17080420, 34160840, 68321680]

約数ペア:

[(1, 68321680), (2, 34160840), (4, 17080420), (5, 13664336), (7, 9760240), (8, 8540210), (10, 6832168), (14, 4880120), (16, 4270105), (20, 3416084), (28, 2440060), (29, 2355920), (35, 1952048), (40, 1708042), (49, 1394320), (56, 1220030), (58, 1177960), (70, 976024), (80, 854021), (98, 697160), (112, 610015), (116, 588980), (140, 488012), (145, 471184), (196, 348580), (203, 336560), (232, 294490), (245, 278864), (280, 244006), (290, 235592), (392, 174290), (406, 168280), (464, 147245), (490, 139432), (560, 122003), (580, 117796), (601, 113680), (784, 87145), (812, 84140), (980, 69716), (1015, 67312), (1160, 58898), (1202, 56840), (1421, 48080), (1624, 42070), (1960, 34858), (2030, 33656), (2320, 29449), (2404, 28420), (2842, 24040), (3005, 22736), (3248, 21035), (3920, 17429), (4060, 16828), (4207, 16240), (4808, 14210), (5684, 12020), (6010, 11368), (7105, 9616), (8120, 8414)]