406456640

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:440

約数の個数: 112

約数和(自身を含む): 1003157760

約数和(自身を除く): 596701120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 109, 160, 172, 215, 218, 271, 320, 344, 430, 436, 542, 545, 688, 860, 872, 1084, 1090, 1355, 1376, 1720, 1744, 2168, 2180, 2710, 2752, 3440, 3488, 4336, 4360, 4687, 5420, 6880, 6976, 8672, 8720, 9374, 10840, 11653, 13760, 17344, 17440, 18748, 21680, 23306, 23435, 29539, 34880, 37496, 43360, 46612, 46870, 58265, 59078, 74992, 86720, 93224, 93740, 116530, 118156, 147695, 149984, 186448, 187480, 233060, 236312, 295390, 299968, 372896, 374960, 466120, 472624, 590780, 745792, 749920, 932240, 945248, 1181560, 1270177, 1499840, 1864480, 1890496, 2363120, 2540354, 3728960, 4726240, 5080708, 6350885, 9452480, 10161416, 12701770, 20322832, 25403540, 40645664, 50807080, 81291328, 101614160, 203228320, 406456640]

約数ペア:

[(1, 406456640), (2, 203228320), (4, 101614160), (5, 81291328), (8, 50807080), (10, 40645664), (16, 25403540), (20, 20322832), (32, 12701770), (40, 10161416), (43, 9452480), (64, 6350885), (80, 5080708), (86, 4726240), (109, 3728960), (160, 2540354), (172, 2363120), (215, 1890496), (218, 1864480), (271, 1499840), (320, 1270177), (344, 1181560), (430, 945248), (436, 932240), (542, 749920), (545, 745792), (688, 590780), (860, 472624), (872, 466120), (1084, 374960), (1090, 372896), (1355, 299968), (1376, 295390), (1720, 236312), (1744, 233060), (2168, 187480), (2180, 186448), (2710, 149984), (2752, 147695), (3440, 118156), (3488, 116530), (4336, 93740), (4360, 93224), (4687, 86720), (5420, 74992), (6880, 59078), (6976, 58265), (8672, 46870), (8720, 46612), (9374, 43360), (10840, 37496), (11653, 34880), (13760, 29539), (17344, 23435), (17440, 23306), (18748, 21680)]