128163100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{317}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 301418208

約数和(自身を除く): 173255108

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 311, 317, 325, 622, 634, 650, 1244, 1268, 1300, 1555, 1585, 3110, 3170, 4043, 4121, 6220, 6340, 7775, 7925, 8086, 8242, 15550, 15850, 16172, 16484, 20215, 20605, 31100, 31700, 40430, 41210, 80860, 82420, 98587, 101075, 103025, 197174, 202150, 206050, 394348, 404300, 412100, 492935, 985870, 1281631, 1971740, 2464675, 2563262, 4929350, 5126524, 6408155, 9858700, 12816310, 25632620, 32040775, 64081550, 128163100]

約数ペア:

[(1, 128163100), (2, 64081550), (4, 32040775), (5, 25632620), (10, 12816310), (13, 9858700), (20, 6408155), (25, 5126524), (26, 4929350), (50, 2563262), (52, 2464675), (65, 1971740), (100, 1281631), (130, 985870), (260, 492935), (311, 412100), (317, 404300), (325, 394348), (622, 206050), (634, 202150), (650, 197174), (1244, 103025), (1268, 101075), (1300, 98587), (1555, 82420), (1585, 80860), (3110, 41210), (3170, 40430), (4043, 31700), (4121, 31100), (6220, 20605), (6340, 20215), (7775, 16484), (7925, 16172), (8086, 15850), (8242, 15550)]