81771250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 80

約数和(自身を含む): 176568480

約数和(自身を除く): 94797230

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 125, 190, 209, 250, 275, 313, 418, 475, 550, 625, 626, 950, 1045, 1250, 1375, 1565, 2090, 2375, 2750, 3130, 3443, 4750, 5225, 5947, 6875, 6886, 7825, 10450, 11875, 11894, 13750, 15650, 17215, 23750, 26125, 29735, 34430, 39125, 52250, 59470, 65417, 78250, 86075, 130625, 130834, 148675, 172150, 195625, 261250, 297350, 327085, 391250, 430375, 654170, 743375, 860750, 1486750, 1635425, 2151875, 3270850, 3716875, 4303750, 7433750, 8177125, 16354250, 40885625, 81771250]

約数ペア:

[(1, 81771250), (2, 40885625), (5, 16354250), (10, 8177125), (11, 7433750), (19, 4303750), (22, 3716875), (25, 3270850), (38, 2151875), (50, 1635425), (55, 1486750), (95, 860750), (110, 743375), (125, 654170), (190, 430375), (209, 391250), (250, 327085), (275, 297350), (313, 261250), (418, 195625), (475, 172150), (550, 148675), (625, 130834), (626, 130625), (950, 86075), (1045, 78250), (1250, 65417), (1375, 59470), (1565, 52250), (2090, 39125), (2375, 34430), (2750, 29735), (3130, 26125), (3443, 23750), (4750, 17215), (5225, 15650), (5947, 13750), (6875, 11894), (6886, 11875), (7825, 10450)]