31125325

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:107

約数の個数: 96

約数和(自身を含む): 54282240

約数和(自身を除く): 23156915

約数列:

[1, 5, 7, 11, 19, 23, 25, 35, 37, 55, 77, 95, 115, 133, 161, 175, 185, 209, 253, 259, 275, 385, 407, 437, 475, 575, 665, 703, 805, 851, 925, 1045, 1265, 1295, 1463, 1771, 1925, 2035, 2185, 2849, 3059, 3325, 3515, 4025, 4255, 4807, 4921, 5225, 5957, 6325, 6475, 7315, 7733, 8855, 9361, 10175, 10925, 14245, 15295, 16169, 17575, 21275, 24035, 24605, 29785, 33649, 36575, 38665, 44275, 46805, 54131, 65527, 71225, 76475, 80845, 113183, 120175, 123025, 148925, 168245, 177859, 193325, 234025, 270655, 327635, 404225, 565915, 841225, 889295, 1245013, 1353275, 1638175, 2829575, 4446475, 6225065, 31125325]

約数ペア:

[(1, 31125325), (5, 6225065), (7, 4446475), (11, 2829575), (19, 1638175), (23, 1353275), (25, 1245013), (35, 889295), (37, 841225), (55, 565915), (77, 404225), (95, 327635), (115, 270655), (133, 234025), (161, 193325), (175, 177859), (185, 168245), (209, 148925), (253, 123025), (259, 120175), (275, 113183), (385, 80845), (407, 76475), (437, 71225), (475, 65527), (575, 54131), (665, 46805), (703, 44275), (805, 38665), (851, 36575), (925, 33649), (1045, 29785), (1265, 24605), (1295, 24035), (1463, 21275), (1771, 17575), (1925, 16169), (2035, 15295), (2185, 14245), (2849, 10925), (3059, 10175), (3325, 9361), (3515, 8855), (4025, 7733), (4255, 7315), (4807, 6475), (4921, 6325), (5225, 5957)]