39965975

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 59996160

約数和(自身を除く): 20030185

約数列:

[1, 5, 7, 25, 31, 35, 53, 139, 155, 175, 217, 265, 371, 695, 775, 973, 1085, 1325, 1643, 1855, 3475, 4309, 4865, 5425, 7367, 8215, 9275, 11501, 21545, 24325, 30163, 36835, 41075, 51569, 57505, 107725, 150815, 184175, 228377, 257845, 287525, 754075, 1141885, 1289225, 1598639, 5709425, 7993195, 39965975]

約数ペア:

[(1, 39965975), (5, 7993195), (7, 5709425), (25, 1598639), (31, 1289225), (35, 1141885), (53, 754075), (139, 287525), (155, 257845), (175, 228377), (217, 184175), (265, 150815), (371, 107725), (695, 57505), (775, 51569), (973, 41075), (1085, 36835), (1325, 30163), (1643, 24325), (1855, 21545), (3475, 11501), (4309, 9275), (4865, 8215), (5425, 7367)]