2389820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{331}}^1$

素因数の和:378

約数の個数: 36

約数和(自身を含む): 5312664

約数和(自身を除く): 2922844

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 331, 361, 380, 662, 722, 1324, 1444, 1655, 1805, 3310, 3610, 6289, 6620, 7220, 12578, 25156, 31445, 62890, 119491, 125780, 238982, 477964, 597455, 1194910, 2389820]

約数ペア:

[(1, 2389820), (2, 1194910), (4, 597455), (5, 477964), (10, 238982), (19, 125780), (20, 119491), (38, 62890), (76, 31445), (95, 25156), (190, 12578), (331, 7220), (361, 6620), (380, 6289), (662, 3610), (722, 3310), (1324, 1805), (1444, 1655)]