28520425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{619}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 37671200

約数和(自身を除く): 9150775

約数列:

[1, 5, 19, 25, 95, 97, 475, 485, 619, 1843, 2425, 3095, 9215, 11761, 15475, 46075, 58805, 60043, 294025, 300215, 1140817, 1501075, 5704085, 28520425]

約数ペア:

[(1, 28520425), (5, 5704085), (19, 1501075), (25, 1140817), (95, 300215), (97, 294025), (475, 60043), (485, 58805), (619, 46075), (1843, 15475), (2425, 11761), (3095, 9215)]