256389375

素因数分解:

$3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:466

約数の個数: 80

約数和(自身を含む): 482245632

約数和(自身を除く): 225856257

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 125, 155, 165, 275, 341, 375, 401, 465, 625, 775, 825, 1023, 1203, 1375, 1705, 1875, 2005, 2325, 3875, 4125, 4411, 5115, 6015, 6875, 8525, 10025, 11625, 12431, 13233, 19375, 20625, 22055, 25575, 30075, 37293, 42625, 50125, 58125, 62155, 66165, 110275, 127875, 136741, 150375, 186465, 213125, 250625, 310775, 330825, 410223, 551375, 639375, 683705, 751875, 932325, 1553875, 1654125, 2051115, 2756875, 3418525, 4661625, 7769375, 8270625, 10255575, 17092625, 23308125, 51277875, 85463125, 256389375]

約数ペア:

[(1, 256389375), (3, 85463125), (5, 51277875), (11, 23308125), (15, 17092625), (25, 10255575), (31, 8270625), (33, 7769375), (55, 4661625), (75, 3418525), (93, 2756875), (125, 2051115), (155, 1654125), (165, 1553875), (275, 932325), (341, 751875), (375, 683705), (401, 639375), (465, 551375), (625, 410223), (775, 330825), (825, 310775), (1023, 250625), (1203, 213125), (1375, 186465), (1705, 150375), (1875, 136741), (2005, 127875), (2325, 110275), (3875, 66165), (4125, 62155), (4411, 58125), (5115, 50125), (6015, 42625), (6875, 37293), (8525, 30075), (10025, 25575), (11625, 22055), (12431, 20625), (13233, 19375)]