28541175

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 51642528

約数和(自身を除く): 23101353

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 73, 75, 195, 219, 325, 365, 401, 949, 975, 1095, 1203, 1825, 2005, 2847, 4745, 5213, 5475, 6015, 10025, 14235, 15639, 23725, 26065, 29273, 30075, 71175, 78195, 87819, 130325, 146365, 380549, 390975, 439095, 731825, 1141647, 1902745, 2195475, 5708235, 9513725, 28541175]

約数ペア:

[(1, 28541175), (3, 9513725), (5, 5708235), (13, 2195475), (15, 1902745), (25, 1141647), (39, 731825), (65, 439095), (73, 390975), (75, 380549), (195, 146365), (219, 130325), (325, 87819), (365, 78195), (401, 71175), (949, 30075), (975, 29273), (1095, 26065), (1203, 23725), (1825, 15639), (2005, 14235), (2847, 10025), (4745, 6015), (5213, 5475)]