665156620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{115079}}^1$

素因数の和:115122

約数の個数: 36

約数和(自身を含む): 1483841520

約数和(自身を除く): 818684900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 115079, 230158, 460316, 575395, 1150790, 1956343, 2301580, 3912686, 7825372, 9781715, 19563430, 33257831, 39126860, 66515662, 133031324, 166289155, 332578310, 665156620]

約数ペア:

[(1, 665156620), (2, 332578310), (4, 166289155), (5, 133031324), (10, 66515662), (17, 39126860), (20, 33257831), (34, 19563430), (68, 9781715), (85, 7825372), (170, 3912686), (289, 2301580), (340, 1956343), (578, 1150790), (1156, 575395), (1445, 460316), (2890, 230158), (5780, 115079)]