17991720

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{617}}^1$

素因数の和:646

約数の個数: 112

約数和(自身を含む): 60792660

約数和(自身を除く): 42800940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 617, 648, 729, 810, 972, 1080, 1215, 1234, 1458, 1620, 1851, 1944, 2430, 2468, 2916, 3085, 3240, 3645, 3702, 4860, 4936, 5553, 5832, 6170, 7290, 7404, 9255, 9720, 11106, 12340, 14580, 14808, 16659, 18510, 22212, 24680, 27765, 29160, 33318, 37020, 44424, 49977, 55530, 66636, 74040, 83295, 99954, 111060, 133272, 149931, 166590, 199908, 222120, 249885, 299862, 333180, 399816, 449793, 499770, 599724, 666360, 749655, 899586, 999540, 1199448, 1499310, 1799172, 1999080, 2248965, 2998620, 3598344, 4497930, 5997240, 8995860, 17991720]

約数ペア:

[(1, 17991720), (2, 8995860), (3, 5997240), (4, 4497930), (5, 3598344), (6, 2998620), (8, 2248965), (9, 1999080), (10, 1799172), (12, 1499310), (15, 1199448), (18, 999540), (20, 899586), (24, 749655), (27, 666360), (30, 599724), (36, 499770), (40, 449793), (45, 399816), (54, 333180), (60, 299862), (72, 249885), (81, 222120), (90, 199908), (108, 166590), (120, 149931), (135, 133272), (162, 111060), (180, 99954), (216, 83295), (243, 74040), (270, 66636), (324, 55530), (360, 49977), (405, 44424), (486, 37020), (540, 33318), (617, 29160), (648, 27765), (729, 24680), (810, 22212), (972, 18510), (1080, 16659), (1215, 14808), (1234, 14580), (1458, 12340), (1620, 11106), (1851, 9720), (1944, 9255), (2430, 7404), (2468, 7290), (2916, 6170), (3085, 5832), (3240, 5553), (3645, 4936), (3702, 4860)]