1611895780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{385621}}^1$

素因数の和:385660

約数の個数: 48

約数和(自身を含む): 3887069760

約数和(自身を除く): 2275173980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 385621, 771242, 1542484, 1928105, 3856210, 4241831, 7326799, 7712420, 8483662, 14653598, 16967324, 21209155, 29307196, 36633995, 42418310, 73267990, 80594789, 84836620, 146535980, 161189578, 322379156, 402973945, 805947890, 1611895780]

約数ペア:

[(1, 1611895780), (2, 805947890), (4, 402973945), (5, 322379156), (10, 161189578), (11, 146535980), (19, 84836620), (20, 80594789), (22, 73267990), (38, 42418310), (44, 36633995), (55, 29307196), (76, 21209155), (95, 16967324), (110, 14653598), (190, 8483662), (209, 7712420), (220, 7326799), (380, 4241831), (418, 3856210), (836, 1928105), (1045, 1542484), (2090, 771242), (4180, 385621)]