78080025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 137144000

約数和(自身を除く): 59063975

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 157, 285, 349, 471, 475, 785, 1047, 1425, 1745, 2355, 2983, 3925, 5235, 6631, 8725, 8949, 11775, 14915, 19893, 26175, 33155, 44745, 54793, 74575, 99465, 164379, 165775, 223725, 273965, 497325, 821895, 1041067, 1369825, 3123201, 4109475, 5205335, 15616005, 26026675, 78080025]

約数ペア:

[(1, 78080025), (3, 26026675), (5, 15616005), (15, 5205335), (19, 4109475), (25, 3123201), (57, 1369825), (75, 1041067), (95, 821895), (157, 497325), (285, 273965), (349, 223725), (471, 165775), (475, 164379), (785, 99465), (1047, 74575), (1425, 54793), (1745, 44745), (2355, 33155), (2983, 26175), (3925, 19893), (5235, 14915), (6631, 11775), (8725, 8949)]