81126400

素因数分解:

$2^{10}\times 5^2\times {\mathrm{3169}}^1$

素因数の和:3199

約数の個数: 66

約数和(自身を含む): 201158690

約数和(自身を除く): 120032290

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1600, 2560, 3169, 3200, 5120, 6338, 6400, 12676, 12800, 15845, 25352, 25600, 31690, 50704, 63380, 79225, 101408, 126760, 158450, 202816, 253520, 316900, 405632, 507040, 633800, 811264, 1014080, 1267600, 1622528, 2028160, 2535200, 3245056, 4056320, 5070400, 8112640, 10140800, 16225280, 20281600, 40563200, 81126400]

約数ペア:

[(1, 81126400), (2, 40563200), (4, 20281600), (5, 16225280), (8, 10140800), (10, 8112640), (16, 5070400), (20, 4056320), (25, 3245056), (32, 2535200), (40, 2028160), (50, 1622528), (64, 1267600), (80, 1014080), (100, 811264), (128, 633800), (160, 507040), (200, 405632), (256, 316900), (320, 253520), (400, 202816), (512, 158450), (640, 126760), (800, 101408), (1024, 79225), (1280, 63380), (1600, 50704), (2560, 31690), (3169, 25600), (3200, 25352), (5120, 15845), (6338, 12800), (6400, 12676)]