20125425

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 34872768

約数和(自身を除く): 14747343

約数列:

[1, 3, 5, 15, 25, 53, 61, 75, 83, 159, 183, 249, 265, 305, 415, 795, 915, 1245, 1325, 1525, 2075, 3233, 3975, 4399, 4575, 5063, 6225, 9699, 13197, 15189, 16165, 21995, 25315, 48495, 65985, 75945, 80825, 109975, 126575, 242475, 268339, 329925, 379725, 805017, 1341695, 4025085, 6708475, 20125425]

約数ペア:

[(1, 20125425), (3, 6708475), (5, 4025085), (15, 1341695), (25, 805017), (53, 379725), (61, 329925), (75, 268339), (83, 242475), (159, 126575), (183, 109975), (249, 80825), (265, 75945), (305, 65985), (415, 48495), (795, 25315), (915, 21995), (1245, 16165), (1325, 15189), (1525, 13197), (2075, 9699), (3233, 6225), (3975, 5063), (4399, 4575)]