639541184

素因数分解:

$2^6\times {\mathrm{89}}^1\times {\mathrm{112279}}^1$

素因数の和:112380

約数の個数: 28

約数和(自身を含む): 1283360400

約数和(自身を除く): 643819216

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 178, 356, 712, 1424, 2848, 5696, 112279, 224558, 449116, 898232, 1796464, 3592928, 7185856, 9992831, 19985662, 39971324, 79942648, 159885296, 319770592, 639541184]

約数ペア:

[(1, 639541184), (2, 319770592), (4, 159885296), (8, 79942648), (16, 39971324), (32, 19985662), (64, 9992831), (89, 7185856), (178, 3592928), (356, 1796464), (712, 898232), (1424, 449116), (2848, 224558), (5696, 112279)]