25662260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 58741200

約数和(自身を除く): 33078940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1109, 1157, 1780, 2218, 2314, 4436, 4628, 5545, 5785, 11090, 11570, 14417, 22180, 23140, 28834, 57668, 72085, 98701, 144170, 197402, 288340, 394804, 493505, 987010, 1283113, 1974020, 2566226, 5132452, 6415565, 12831130, 25662260]

約数ペア:

[(1, 25662260), (2, 12831130), (4, 6415565), (5, 5132452), (10, 2566226), (13, 1974020), (20, 1283113), (26, 987010), (52, 493505), (65, 394804), (89, 288340), (130, 197402), (178, 144170), (260, 98701), (356, 72085), (445, 57668), (890, 28834), (1109, 23140), (1157, 22180), (1780, 14417), (2218, 11570), (2314, 11090), (4436, 5785), (4628, 5545)]