21782520

素因数分解:

$2^3\times 3^8\times 5^1\times {\mathrm{83}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 74397960

約数和(自身を除く): 52615440

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, 83, 90, 108, 120, 135, 162, 166, 180, 216, 243, 249, 270, 324, 332, 360, 405, 415, 486, 498, 540, 648, 664, 729, 747, 810, 830, 972, 996, 1080, 1215, 1245, 1458, 1494, 1620, 1660, 1944, 1992, 2187, 2241, 2430, 2490, 2916, 2988, 3240, 3320, 3645, 3735, 4374, 4482, 4860, 4980, 5832, 5976, 6561, 6723, 7290, 7470, 8748, 8964, 9720, 9960, 10935, 11205, 13122, 13446, 14580, 14940, 17496, 17928, 20169, 21870, 22410, 26244, 26892, 29160, 29880, 32805, 33615, 40338, 43740, 44820, 52488, 53784, 60507, 65610, 67230, 80676, 87480, 89640, 100845, 121014, 131220, 134460, 161352, 181521, 201690, 242028, 262440, 268920, 302535, 363042, 403380, 484056, 544563, 605070, 726084, 806760, 907605, 1089126, 1210140, 1452168, 1815210, 2178252, 2420280, 2722815, 3630420, 4356504, 5445630, 7260840, 10891260, 21782520]

約数ペア:

[(1, 21782520), (2, 10891260), (3, 7260840), (4, 5445630), (5, 4356504), (6, 3630420), (8, 2722815), (9, 2420280), (10, 2178252), (12, 1815210), (15, 1452168), (18, 1210140), (20, 1089126), (24, 907605), (27, 806760), (30, 726084), (36, 605070), (40, 544563), (45, 484056), (54, 403380), (60, 363042), (72, 302535), (81, 268920), (83, 262440), (90, 242028), (108, 201690), (120, 181521), (135, 161352), (162, 134460), (166, 131220), (180, 121014), (216, 100845), (243, 89640), (249, 87480), (270, 80676), (324, 67230), (332, 65610), (360, 60507), (405, 53784), (415, 52488), (486, 44820), (498, 43740), (540, 40338), (648, 33615), (664, 32805), (729, 29880), (747, 29160), (810, 26892), (830, 26244), (972, 22410), (996, 21870), (1080, 20169), (1215, 17928), (1245, 17496), (1458, 14940), (1494, 14580), (1620, 13446), (1660, 13122), (1944, 11205), (1992, 10935), (2187, 9960), (2241, 9720), (2430, 8964), (2490, 8748), (2916, 7470), (2988, 7290), (3240, 6723), (3320, 6561), (3645, 5976), (3735, 5832), (4374, 4980), (4482, 4860)]