1285688625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{20287}}^1$

素因数の和:20331

約数の個数: 48

約数和(自身を含む): 2316727296

約数和(自身を除く): 1031038671

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 169, 195, 325, 375, 507, 845, 975, 1625, 2535, 4225, 4875, 12675, 20287, 21125, 60861, 63375, 101435, 263731, 304305, 507175, 791193, 1318655, 1521525, 2535875, 3428503, 3955965, 6593275, 7607625, 10285509, 17142515, 19779825, 32966375, 51427545, 85712575, 98899125, 257137725, 428562875, 1285688625]

約数ペア:

[(1, 1285688625), (3, 428562875), (5, 257137725), (13, 98899125), (15, 85712575), (25, 51427545), (39, 32966375), (65, 19779825), (75, 17142515), (125, 10285509), (169, 7607625), (195, 6593275), (325, 3955965), (375, 3428503), (507, 2535875), (845, 1521525), (975, 1318655), (1625, 791193), (2535, 507175), (4225, 304305), (4875, 263731), (12675, 101435), (20287, 63375), (21125, 60861)]