52720000

素因数分解:

$2^7\times 5^4\times {\mathrm{659}}^1$

素因数の和:693

約数の個数: 80

約数和(自身を含む): 131442300

約数和(自身を除く): 78722300

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, 625, 640, 659, 800, 1000, 1250, 1318, 1600, 2000, 2500, 2636, 3200, 3295, 4000, 5000, 5272, 6590, 8000, 10000, 10544, 13180, 16000, 16475, 20000, 21088, 26360, 32950, 40000, 42176, 52720, 65900, 80000, 82375, 84352, 105440, 131800, 164750, 210880, 263600, 329500, 411875, 421760, 527200, 659000, 823750, 1054400, 1318000, 1647500, 2108800, 2636000, 3295000, 5272000, 6590000, 10544000, 13180000, 26360000, 52720000]

約数ペア:

[(1, 52720000), (2, 26360000), (4, 13180000), (5, 10544000), (8, 6590000), (10, 5272000), (16, 3295000), (20, 2636000), (25, 2108800), (32, 1647500), (40, 1318000), (50, 1054400), (64, 823750), (80, 659000), (100, 527200), (125, 421760), (128, 411875), (160, 329500), (200, 263600), (250, 210880), (320, 164750), (400, 131800), (500, 105440), (625, 84352), (640, 82375), (659, 80000), (800, 65900), (1000, 52720), (1250, 42176), (1318, 40000), (1600, 32950), (2000, 26360), (2500, 21088), (2636, 20000), (3200, 16475), (3295, 16000), (4000, 13180), (5000, 10544), (5272, 10000), (6590, 8000)]