20312175

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 16435473

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 83, 195, 249, 251, 325, 415, 753, 975, 1079, 1245, 1255, 2075, 3237, 3263, 3765, 5395, 6225, 6275, 9789, 16185, 16315, 18825, 20833, 26975, 48945, 62499, 80925, 81575, 104165, 244725, 270829, 312495, 520825, 812487, 1354145, 1562475, 4062435, 6770725, 20312175]

約数ペア:

[(1, 20312175), (3, 6770725), (5, 4062435), (13, 1562475), (15, 1354145), (25, 812487), (39, 520825), (65, 312495), (75, 270829), (83, 244725), (195, 104165), (249, 81575), (251, 80925), (325, 62499), (415, 48945), (753, 26975), (975, 20833), (1079, 18825), (1245, 16315), (1255, 16185), (2075, 9789), (3237, 6275), (3263, 6225), (3765, 5395)]