81212950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1373}}^1$

素因数の和:1418

約数の個数: 72

約数和(自身を含む): 187072848

約数和(自身を除く): 105859898

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 169, 175, 182, 325, 338, 350, 455, 650, 845, 910, 1183, 1373, 1690, 2275, 2366, 2746, 4225, 4550, 5915, 6865, 8450, 9611, 11830, 13730, 17849, 19222, 29575, 34325, 35698, 48055, 59150, 68650, 89245, 96110, 124943, 178490, 232037, 240275, 249886, 446225, 464074, 480550, 624715, 892450, 1160185, 1249430, 1624259, 2320370, 3123575, 3248518, 5800925, 6247150, 8121295, 11601850, 16242590, 40606475, 81212950]

約数ペア:

[(1, 81212950), (2, 40606475), (5, 16242590), (7, 11601850), (10, 8121295), (13, 6247150), (14, 5800925), (25, 3248518), (26, 3123575), (35, 2320370), (50, 1624259), (65, 1249430), (70, 1160185), (91, 892450), (130, 624715), (169, 480550), (175, 464074), (182, 446225), (325, 249886), (338, 240275), (350, 232037), (455, 178490), (650, 124943), (845, 96110), (910, 89245), (1183, 68650), (1373, 59150), (1690, 48055), (2275, 35698), (2366, 34325), (2746, 29575), (4225, 19222), (4550, 17849), (5915, 13730), (6865, 11830), (8450, 9611)]