81339720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8803}}^1$

素因数の和:8835

約数の個数: 128

約数和(自身を含む): 304266240

約数和(自身を除く): 222926520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 8803, 9240, 17606, 26409, 35212, 44015, 52818, 61621, 70424, 88030, 96833, 105636, 123242, 132045, 176060, 184863, 193666, 211272, 246484, 264090, 290499, 308105, 352120, 369726, 387332, 484165, 492968, 528180, 580998, 616210, 677831, 739452, 774664, 924315, 968330, 1056360, 1161996, 1232420, 1355662, 1452495, 1478904, 1848630, 1936660, 2033493, 2323992, 2464840, 2711324, 2904990, 3389155, 3697260, 3873320, 4066986, 5422648, 5809980, 6778310, 7394520, 8133972, 10167465, 11619960, 13556620, 16267944, 20334930, 27113240, 40669860, 81339720]

約数ペア:

[(1, 81339720), (2, 40669860), (3, 27113240), (4, 20334930), (5, 16267944), (6, 13556620), (7, 11619960), (8, 10167465), (10, 8133972), (11, 7394520), (12, 6778310), (14, 5809980), (15, 5422648), (20, 4066986), (21, 3873320), (22, 3697260), (24, 3389155), (28, 2904990), (30, 2711324), (33, 2464840), (35, 2323992), (40, 2033493), (42, 1936660), (44, 1848630), (55, 1478904), (56, 1452495), (60, 1355662), (66, 1232420), (70, 1161996), (77, 1056360), (84, 968330), (88, 924315), (105, 774664), (110, 739452), (120, 677831), (132, 616210), (140, 580998), (154, 528180), (165, 492968), (168, 484165), (210, 387332), (220, 369726), (231, 352120), (264, 308105), (280, 290499), (308, 264090), (330, 246484), (385, 211272), (420, 193666), (440, 184863), (462, 176060), (616, 132045), (660, 123242), (770, 105636), (840, 96833), (924, 88030), (1155, 70424), (1320, 61621), (1540, 52818), (1848, 44015), (2310, 35212), (3080, 26409), (4620, 17606), (8803, 9240)]