77939425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 107929600

約数和(自身を除く): 29990175

約数列:

[1, 5, 19, 25, 31, 67, 79, 95, 155, 335, 395, 475, 589, 775, 1273, 1501, 1675, 1975, 2077, 2449, 2945, 5293, 6365, 7505, 10385, 12245, 14725, 26465, 31825, 37525, 39463, 46531, 51925, 61225, 100567, 132325, 164083, 197315, 232655, 502835, 820415, 986575, 1163275, 2514175, 3117577, 4102075, 15587885, 77939425]

約数ペア:

[(1, 77939425), (5, 15587885), (19, 4102075), (25, 3117577), (31, 2514175), (67, 1163275), (79, 986575), (95, 820415), (155, 502835), (335, 232655), (395, 197315), (475, 164083), (589, 132325), (775, 100567), (1273, 61225), (1501, 51925), (1675, 46531), (1975, 39463), (2077, 37525), (2449, 31825), (2945, 26465), (5293, 14725), (6365, 12245), (7505, 10385)]