83684000

素因数分解:

$2^5\times 5^3\times {\mathrm{20921}}^1$

素因数の和:20946

約数の個数: 48

約数和(自身を含む): 205621416

約数和(自身を除く): 121937416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 20921, 41842, 83684, 104605, 167368, 209210, 334736, 418420, 523025, 669472, 836840, 1046050, 1673680, 2092100, 2615125, 3347360, 4184200, 5230250, 8368400, 10460500, 16736800, 20921000, 41842000, 83684000]

約数ペア:

[(1, 83684000), (2, 41842000), (4, 20921000), (5, 16736800), (8, 10460500), (10, 8368400), (16, 5230250), (20, 4184200), (25, 3347360), (32, 2615125), (40, 2092100), (50, 1673680), (80, 1046050), (100, 836840), (125, 669472), (160, 523025), (200, 418420), (250, 334736), (400, 209210), (500, 167368), (800, 104605), (1000, 83684), (2000, 41842), (4000, 20921)]