31519860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:717

約数の個数: 96

約数和(自身を含む): 95208960

約数和(自身を除く): 63689100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 643, 645, 817, 860, 1140, 1286, 1290, 1634, 1929, 2451, 2572, 2580, 3215, 3268, 3858, 4085, 4902, 6430, 7716, 8170, 9645, 9804, 12217, 12255, 12860, 16340, 19290, 24434, 24510, 27649, 36651, 38580, 48868, 49020, 55298, 61085, 73302, 82947, 110596, 122170, 138245, 146604, 165894, 183255, 244340, 276490, 331788, 366510, 414735, 525331, 552980, 733020, 829470, 1050662, 1575993, 1658940, 2101324, 2626655, 3151986, 5253310, 6303972, 7879965, 10506620, 15759930, 31519860]

約数ペア:

[(1, 31519860), (2, 15759930), (3, 10506620), (4, 7879965), (5, 6303972), (6, 5253310), (10, 3151986), (12, 2626655), (15, 2101324), (19, 1658940), (20, 1575993), (30, 1050662), (38, 829470), (43, 733020), (57, 552980), (60, 525331), (76, 414735), (86, 366510), (95, 331788), (114, 276490), (129, 244340), (172, 183255), (190, 165894), (215, 146604), (228, 138245), (258, 122170), (285, 110596), (380, 82947), (430, 73302), (516, 61085), (570, 55298), (643, 49020), (645, 48868), (817, 38580), (860, 36651), (1140, 27649), (1286, 24510), (1290, 24434), (1634, 19290), (1929, 16340), (2451, 12860), (2572, 12255), (2580, 12217), (3215, 9804), (3268, 9645), (3858, 8170), (4085, 7716), (4902, 6430)]