28522325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 41664000

約数和(自身を除く): 13141675

約数列:

[1, 5, 13, 19, 25, 31, 65, 95, 149, 155, 247, 325, 403, 475, 589, 745, 775, 1235, 1937, 2015, 2831, 2945, 3725, 4619, 6175, 7657, 9685, 10075, 14155, 14725, 23095, 36803, 38285, 48425, 60047, 70775, 87761, 115475, 184015, 191425, 300235, 438805, 920075, 1140893, 1501175, 2194025, 5704465, 28522325]

約数ペア:

[(1, 28522325), (5, 5704465), (13, 2194025), (19, 1501175), (25, 1140893), (31, 920075), (65, 438805), (95, 300235), (149, 191425), (155, 184015), (247, 115475), (325, 87761), (403, 70775), (475, 60047), (589, 48425), (745, 38285), (775, 36803), (1235, 23095), (1937, 14725), (2015, 14155), (2831, 10075), (2945, 9685), (3725, 7657), (4619, 6175)]