164064640

素因数分解:

$2^7\times 5^1\times {\mathrm{389}}^1\times {\mathrm{659}}^1$

素因数の和:1067

約数の個数: 64

約数和(自身を含む): 393822000

約数和(自身を除く): 229757360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 389, 640, 659, 778, 1318, 1556, 1945, 2636, 3112, 3295, 3890, 5272, 6224, 6590, 7780, 10544, 12448, 13180, 15560, 21088, 24896, 26360, 31120, 42176, 49792, 52720, 62240, 84352, 105440, 124480, 210880, 248960, 256351, 421760, 512702, 1025404, 1281755, 2050808, 2563510, 4101616, 5127020, 8203232, 10254040, 16406464, 20508080, 32812928, 41016160, 82032320, 164064640]

約数ペア:

[(1, 164064640), (2, 82032320), (4, 41016160), (5, 32812928), (8, 20508080), (10, 16406464), (16, 10254040), (20, 8203232), (32, 5127020), (40, 4101616), (64, 2563510), (80, 2050808), (128, 1281755), (160, 1025404), (320, 512702), (389, 421760), (640, 256351), (659, 248960), (778, 210880), (1318, 124480), (1556, 105440), (1945, 84352), (2636, 62240), (3112, 52720), (3295, 49792), (3890, 42176), (5272, 31120), (6224, 26360), (6590, 24896), (7780, 21088), (10544, 15560), (12448, 13180)]