18172020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 35171340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 83, 89, 123, 164, 166, 178, 205, 246, 249, 267, 332, 356, 410, 415, 445, 492, 498, 534, 615, 820, 830, 890, 996, 1068, 1230, 1245, 1335, 1660, 1780, 2460, 2490, 2670, 3403, 3649, 4980, 5340, 6806, 7298, 7387, 10209, 10947, 13612, 14596, 14774, 17015, 18245, 20418, 21894, 22161, 29548, 34030, 36490, 36935, 40836, 43788, 44322, 51045, 54735, 68060, 72980, 73870, 88644, 102090, 109470, 110805, 147740, 204180, 218940, 221610, 302867, 443220, 605734, 908601, 1211468, 1514335, 1817202, 3028670, 3634404, 4543005, 6057340, 9086010, 18172020]

約数ペア:

[(1, 18172020), (2, 9086010), (3, 6057340), (4, 4543005), (5, 3634404), (6, 3028670), (10, 1817202), (12, 1514335), (15, 1211468), (20, 908601), (30, 605734), (41, 443220), (60, 302867), (82, 221610), (83, 218940), (89, 204180), (123, 147740), (164, 110805), (166, 109470), (178, 102090), (205, 88644), (246, 73870), (249, 72980), (267, 68060), (332, 54735), (356, 51045), (410, 44322), (415, 43788), (445, 40836), (492, 36935), (498, 36490), (534, 34030), (615, 29548), (820, 22161), (830, 21894), (890, 20418), (996, 18245), (1068, 17015), (1230, 14774), (1245, 14596), (1335, 13612), (1660, 10947), (1780, 10209), (2460, 7387), (2490, 7298), (2670, 6806), (3403, 5340), (3649, 4980)]