391452490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{599}}^1$

素因数の和:1087

約数の個数: 64

約数和(自身を含む): 830995200

約数和(自身を除く): 439542710

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 457, 599, 715, 914, 1198, 1430, 2285, 2995, 4570, 5027, 5941, 5990, 6589, 7787, 10054, 11882, 13178, 15574, 25135, 29705, 32945, 38935, 50270, 59410, 65351, 65890, 77870, 85657, 130702, 171314, 273743, 326755, 428285, 547486, 653510, 856570, 1368715, 2737430, 3011173, 3558659, 6022346, 7117318, 15055865, 17793295, 30111730, 35586590, 39145249, 78290498, 195726245, 391452490]

約数ペア:

[(1, 391452490), (2, 195726245), (5, 78290498), (10, 39145249), (11, 35586590), (13, 30111730), (22, 17793295), (26, 15055865), (55, 7117318), (65, 6022346), (110, 3558659), (130, 3011173), (143, 2737430), (286, 1368715), (457, 856570), (599, 653510), (715, 547486), (914, 428285), (1198, 326755), (1430, 273743), (2285, 171314), (2995, 130702), (4570, 85657), (5027, 77870), (5941, 65890), (5990, 65351), (6589, 59410), (7787, 50270), (10054, 38935), (11882, 32945), (13178, 29705), (15574, 25135)]