396988160

素因数分解:

$2^8\times 5^1\times {\mathrm{331}}^1\times {\mathrm{937}}^1$

素因数の和:1289

約数の個数: 72

約数和(自身を含む): 954801456

約数和(自身を除く): 557813296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 331, 640, 662, 937, 1280, 1324, 1655, 1874, 2648, 3310, 3748, 4685, 5296, 6620, 7496, 9370, 10592, 13240, 14992, 18740, 21184, 26480, 29984, 37480, 42368, 52960, 59968, 74960, 84736, 105920, 119936, 149920, 211840, 239872, 299840, 310147, 423680, 599680, 620294, 1199360, 1240588, 1550735, 2481176, 3101470, 4962352, 6202940, 9924704, 12405880, 19849408, 24811760, 39698816, 49623520, 79397632, 99247040, 198494080, 396988160]

約数ペア:

[(1, 396988160), (2, 198494080), (4, 99247040), (5, 79397632), (8, 49623520), (10, 39698816), (16, 24811760), (20, 19849408), (32, 12405880), (40, 9924704), (64, 6202940), (80, 4962352), (128, 3101470), (160, 2481176), (256, 1550735), (320, 1240588), (331, 1199360), (640, 620294), (662, 599680), (937, 423680), (1280, 310147), (1324, 299840), (1655, 239872), (1874, 211840), (2648, 149920), (3310, 119936), (3748, 105920), (4685, 84736), (5296, 74960), (6620, 59968), (7496, 52960), (9370, 42368), (10592, 37480), (13240, 29984), (14992, 26480), (18740, 21184)]