13720425

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2999}}^1$

素因数の和:3073

約数の個数: 24

約数和(自身を含む): 23064000

約数和(自身を除く): 9343575

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 305, 915, 1525, 2999, 4575, 8997, 14995, 44985, 74975, 182939, 224925, 548817, 914695, 2744085, 4573475, 13720425]

約数ペア:

[(1, 13720425), (3, 4573475), (5, 2744085), (15, 914695), (25, 548817), (61, 224925), (75, 182939), (183, 74975), (305, 44985), (915, 14995), (1525, 8997), (2999, 4575)]