255996975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1063}}^1$

素因数の和:1121

約数の個数: 72

約数和(自身を含む): 482885760

約数和(自身を除く): 226888785

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 169, 195, 247, 285, 325, 475, 507, 741, 845, 975, 1063, 1235, 1425, 2535, 3189, 3211, 3705, 4225, 5315, 6175, 9633, 12675, 13819, 15945, 16055, 18525, 20197, 26575, 41457, 48165, 60591, 69095, 79725, 80275, 100985, 179647, 207285, 240825, 262561, 302955, 345475, 504925, 538941, 787683, 898235, 1036425, 1312805, 1514775, 2694705, 3413293, 3938415, 4491175, 6564025, 10239879, 13473525, 17066465, 19692075, 51199395, 85332325, 255996975]

約数ペア:

[(1, 255996975), (3, 85332325), (5, 51199395), (13, 19692075), (15, 17066465), (19, 13473525), (25, 10239879), (39, 6564025), (57, 4491175), (65, 3938415), (75, 3413293), (95, 2694705), (169, 1514775), (195, 1312805), (247, 1036425), (285, 898235), (325, 787683), (475, 538941), (507, 504925), (741, 345475), (845, 302955), (975, 262561), (1063, 240825), (1235, 207285), (1425, 179647), (2535, 100985), (3189, 80275), (3211, 79725), (3705, 69095), (4225, 60591), (5315, 48165), (6175, 41457), (9633, 26575), (12675, 20197), (13819, 18525), (15945, 16055)]