25489905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 49545216

約数和(自身を除く): 24055311

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 41, 93, 105, 123, 155, 191, 205, 217, 287, 465, 573, 615, 651, 861, 955, 1085, 1271, 1337, 1435, 2865, 3255, 3813, 4011, 4305, 5921, 6355, 6685, 7831, 8897, 17763, 19065, 20055, 23493, 26691, 29605, 39155, 41447, 44485, 54817, 88815, 117465, 124341, 133455, 164451, 207235, 242761, 274085, 621705, 728283, 822255, 1213805, 1699327, 3641415, 5097981, 8496635, 25489905]

約数ペア:

[(1, 25489905), (3, 8496635), (5, 5097981), (7, 3641415), (15, 1699327), (21, 1213805), (31, 822255), (35, 728283), (41, 621705), (93, 274085), (105, 242761), (123, 207235), (155, 164451), (191, 133455), (205, 124341), (217, 117465), (287, 88815), (465, 54817), (573, 44485), (615, 41447), (651, 39155), (861, 29605), (955, 26691), (1085, 23493), (1271, 20055), (1337, 19065), (1435, 17763), (2865, 8897), (3255, 7831), (3813, 6685), (4011, 6355), (4305, 5921)]