213493820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{1187}}^1$

素因数の和:1259

約数の個数: 72

約数和(自身を含む): 496664784

約数和(自身を除く): 283170964

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 529, 782, 1058, 1187, 1564, 1955, 2116, 2374, 2645, 3910, 4748, 5290, 5935, 7820, 8993, 10580, 11870, 17986, 20179, 23740, 27301, 35972, 40358, 44965, 54602, 80716, 89930, 100895, 109204, 136505, 179860, 201790, 273010, 403580, 464117, 546020, 627923, 928234, 1255846, 1856468, 2320585, 2511692, 3139615, 4641170, 6279230, 9282340, 10674691, 12558460, 21349382, 42698764, 53373455, 106746910, 213493820]

約数ペア:

[(1, 213493820), (2, 106746910), (4, 53373455), (5, 42698764), (10, 21349382), (17, 12558460), (20, 10674691), (23, 9282340), (34, 6279230), (46, 4641170), (68, 3139615), (85, 2511692), (92, 2320585), (115, 1856468), (170, 1255846), (230, 928234), (340, 627923), (391, 546020), (460, 464117), (529, 403580), (782, 273010), (1058, 201790), (1187, 179860), (1564, 136505), (1955, 109204), (2116, 100895), (2374, 89930), (2645, 80716), (3910, 54602), (4748, 44965), (5290, 40358), (5935, 35972), (7820, 27301), (8993, 23740), (10580, 20179), (11870, 17986)]