77820620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1170

約数の個数: 48

約数和(自身を含む): 169635648

約数和(自身を除く): 91815028

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 103, 148, 185, 206, 370, 412, 515, 740, 1021, 1030, 2042, 2060, 3811, 4084, 5105, 7622, 10210, 15244, 19055, 20420, 37777, 38110, 75554, 76220, 105163, 151108, 188885, 210326, 377770, 420652, 525815, 755540, 1051630, 2103260, 3891031, 7782062, 15564124, 19455155, 38910310, 77820620]

約数ペア:

[(1, 77820620), (2, 38910310), (4, 19455155), (5, 15564124), (10, 7782062), (20, 3891031), (37, 2103260), (74, 1051630), (103, 755540), (148, 525815), (185, 420652), (206, 377770), (370, 210326), (412, 188885), (515, 151108), (740, 105163), (1021, 76220), (1030, 75554), (2042, 38110), (2060, 37777), (3811, 20420), (4084, 19055), (5105, 15244), (7622, 10210)]