87899775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 156204288

約数和(自身を除く): 68304513

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 213, 255, 355, 425, 971, 1065, 1207, 1275, 1775, 2913, 3621, 4855, 5325, 6035, 14565, 16507, 18105, 24275, 30175, 49521, 68941, 72825, 82535, 90525, 206823, 247605, 344705, 412675, 1034115, 1171997, 1238025, 1723525, 3515991, 5170575, 5859985, 17579955, 29299925, 87899775]

約数ペア:

[(1, 87899775), (3, 29299925), (5, 17579955), (15, 5859985), (17, 5170575), (25, 3515991), (51, 1723525), (71, 1238025), (75, 1171997), (85, 1034115), (213, 412675), (255, 344705), (355, 247605), (425, 206823), (971, 90525), (1065, 82535), (1207, 72825), (1275, 68941), (1775, 49521), (2913, 30175), (3621, 24275), (4855, 18105), (5325, 16507), (6035, 14565)]