12842000

素因数分解:

$2^4\times 5^3\times {\mathrm{6421}}^1$

素因数の和:6444

約数の個数: 40

約数和(自身を含む): 31056792

約数和(自身を除く): 18214792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 6421, 12842, 25684, 32105, 51368, 64210, 102736, 128420, 160525, 256840, 321050, 513680, 642100, 802625, 1284200, 1605250, 2568400, 3210500, 6421000, 12842000]

約数ペア:

[(1, 12842000), (2, 6421000), (4, 3210500), (5, 2568400), (8, 1605250), (10, 1284200), (16, 802625), (20, 642100), (25, 513680), (40, 321050), (50, 256840), (80, 160525), (100, 128420), (125, 102736), (200, 64210), (250, 51368), (400, 32105), (500, 25684), (1000, 12842), (2000, 6421)]