128853340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{11953}}^1$

素因数の和:11987

約数の個数: 72

約数和(自身を含む): 343414512

約数和(自身を除く): 214561172

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 11953, 23906, 47812, 59765, 83671, 119530, 131483, 167342, 239060, 262966, 334684, 418355, 525932, 585697, 657415, 836710, 920381, 1171394, 1314830, 1673420, 1840762, 2342788, 2629660, 2928485, 3681524, 4601905, 5856970, 6442667, 9203810, 11713940, 12885334, 18407620, 25770668, 32213335, 64426670, 128853340]

約数ペア:

[(1, 128853340), (2, 64426670), (4, 32213335), (5, 25770668), (7, 18407620), (10, 12885334), (11, 11713940), (14, 9203810), (20, 6442667), (22, 5856970), (28, 4601905), (35, 3681524), (44, 2928485), (49, 2629660), (55, 2342788), (70, 1840762), (77, 1673420), (98, 1314830), (110, 1171394), (140, 920381), (154, 836710), (196, 657415), (220, 585697), (245, 525932), (308, 418355), (385, 334684), (490, 262966), (539, 239060), (770, 167342), (980, 131483), (1078, 119530), (1540, 83671), (2156, 59765), (2695, 47812), (5390, 23906), (10780, 11953)]