82666480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1$

素因数の和:914

約数の個数: 80

約数和(自身を含む): 209299104

約数和(自身を除く): 126632624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 101, 104, 130, 202, 208, 260, 404, 505, 520, 787, 808, 1010, 1040, 1313, 1574, 1616, 2020, 2626, 3148, 3935, 4040, 5252, 6296, 6565, 7870, 8080, 10231, 10504, 12592, 13130, 15740, 20462, 21008, 26260, 31480, 40924, 51155, 52520, 62960, 79487, 81848, 102310, 105040, 158974, 163696, 204620, 317948, 397435, 409240, 635896, 794870, 818480, 1033331, 1271792, 1589740, 2066662, 3179480, 4133324, 5166655, 6358960, 8266648, 10333310, 16533296, 20666620, 41333240, 82666480]

約数ペア:

[(1, 82666480), (2, 41333240), (4, 20666620), (5, 16533296), (8, 10333310), (10, 8266648), (13, 6358960), (16, 5166655), (20, 4133324), (26, 3179480), (40, 2066662), (52, 1589740), (65, 1271792), (80, 1033331), (101, 818480), (104, 794870), (130, 635896), (202, 409240), (208, 397435), (260, 317948), (404, 204620), (505, 163696), (520, 158974), (787, 105040), (808, 102310), (1010, 81848), (1040, 79487), (1313, 62960), (1574, 52520), (1616, 51155), (2020, 40924), (2626, 31480), (3148, 26260), (3935, 21008), (4040, 20462), (5252, 15740), (6296, 13130), (6565, 12592), (7870, 10504), (8080, 10231)]