25782940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 55931904

約数和(自身を除く): 30148964

約数列:

[1, 2, 4, 5, 10, 20, 67, 71, 134, 142, 268, 271, 284, 335, 355, 542, 670, 710, 1084, 1340, 1355, 1420, 2710, 4757, 5420, 9514, 18157, 19028, 19241, 23785, 36314, 38482, 47570, 72628, 76964, 90785, 95140, 96205, 181570, 192410, 363140, 384820, 1289147, 2578294, 5156588, 6445735, 12891470, 25782940]

約数ペア:

[(1, 25782940), (2, 12891470), (4, 6445735), (5, 5156588), (10, 2578294), (20, 1289147), (67, 384820), (71, 363140), (134, 192410), (142, 181570), (268, 96205), (271, 95140), (284, 90785), (335, 76964), (355, 72628), (542, 47570), (670, 38482), (710, 36314), (1084, 23785), (1340, 19241), (1355, 19028), (1420, 18157), (2710, 9514), (4757, 5420)]