72473180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{278743}}^1$

素因数の和:278765

約数の個数: 24

約数和(自身を含む): 163901472

約数和(自身を除く): 91428292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 278743, 557486, 1114972, 1393715, 2787430, 3623659, 5574860, 7247318, 14494636, 18118295, 36236590, 72473180]

約数ペア:

[(1, 72473180), (2, 36236590), (4, 18118295), (5, 14494636), (10, 7247318), (13, 5574860), (20, 3623659), (26, 2787430), (52, 1393715), (65, 1114972), (130, 557486), (260, 278743)]