64816000

素因数分解:

$2^7\times 5^3\times {\mathrm{4051}}^1$

素因数の和:4080

約数の個数: 64

約数和(自身を含む): 161188560

約数和(自身を除く): 96372560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1600, 2000, 3200, 4000, 4051, 8000, 8102, 16000, 16204, 20255, 32408, 40510, 64816, 81020, 101275, 129632, 162040, 202550, 259264, 324080, 405100, 506375, 518528, 648160, 810200, 1012750, 1296320, 1620400, 2025500, 2592640, 3240800, 4051000, 6481600, 8102000, 12963200, 16204000, 32408000, 64816000]

約数ペア:

[(1, 64816000), (2, 32408000), (4, 16204000), (5, 12963200), (8, 8102000), (10, 6481600), (16, 4051000), (20, 3240800), (25, 2592640), (32, 2025500), (40, 1620400), (50, 1296320), (64, 1012750), (80, 810200), (100, 648160), (125, 518528), (128, 506375), (160, 405100), (200, 324080), (250, 259264), (320, 202550), (400, 162040), (500, 129632), (640, 101275), (800, 81020), (1000, 64816), (1600, 40510), (2000, 32408), (3200, 20255), (4000, 16204), (4051, 16000), (8000, 8102)]