26388680

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1613}}^1$

素因数の和:2033

約数の個数: 32

約数和(自身を含む): 59556600

約数和(自身を除く): 33167920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1613, 1636, 2045, 3226, 3272, 4090, 6452, 8065, 8180, 12904, 16130, 16360, 32260, 64520, 659717, 1319434, 2638868, 3298585, 5277736, 6597170, 13194340, 26388680]

約数ペア:

[(1, 26388680), (2, 13194340), (4, 6597170), (5, 5277736), (8, 3298585), (10, 2638868), (20, 1319434), (40, 659717), (409, 64520), (818, 32260), (1613, 16360), (1636, 16130), (2045, 12904), (3226, 8180), (3272, 8065), (4090, 6452)]