42143725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 59996160

約数和(自身を除く): 17852435

約数列:

[1, 5, 13, 25, 31, 47, 65, 89, 155, 235, 325, 403, 445, 611, 775, 1157, 1175, 1457, 2015, 2225, 2759, 3055, 4183, 5785, 7285, 10075, 13795, 15275, 18941, 20915, 28925, 35867, 36425, 54379, 68975, 94705, 104575, 129673, 179335, 271895, 473525, 648365, 896675, 1359475, 1685749, 3241825, 8428745, 42143725]

約数ペア:

[(1, 42143725), (5, 8428745), (13, 3241825), (25, 1685749), (31, 1359475), (47, 896675), (65, 648365), (89, 473525), (155, 271895), (235, 179335), (325, 129673), (403, 104575), (445, 94705), (611, 68975), (775, 54379), (1157, 36425), (1175, 35867), (1457, 28925), (2015, 20915), (2225, 18941), (2759, 15275), (3055, 13795), (4183, 10075), (5785, 7285)]