201982780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{1123}}^1$

素因数の和:1195

約数の個数: 72

約数和(自身を含む): 469908432

約数和(自身を除く): 267925652

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, 1123, 1564, 1955, 2116, 2246, 2645, 3910, 4492, 5290, 5615, 7820, 8993, 10580, 11230, 17986, 19091, 22460, 25829, 35972, 38182, 44965, 51658, 76364, 89930, 95455, 103316, 129145, 179860, 190910, 258290, 381820, 439093, 516580, 594067, 878186, 1188134, 1756372, 2195465, 2376268, 2970335, 4390930, 5940670, 8781860, 10099139, 11881340, 20198278, 40396556, 50495695, 100991390, 201982780]

約数ペア:

[(1, 201982780), (2, 100991390), (4, 50495695), (5, 40396556), (10, 20198278), (17, 11881340), (20, 10099139), (23, 8781860), (34, 5940670), (46, 4390930), (68, 2970335), (85, 2376268), (92, 2195465), (115, 1756372), (170, 1188134), (230, 878186), (340, 594067), (391, 516580), (460, 439093), (529, 381820), (782, 258290), (1058, 190910), (1123, 179860), (1564, 129145), (1955, 103316), (2116, 95455), (2246, 89930), (2645, 76364), (3910, 51658), (4492, 44965), (5290, 38182), (5615, 35972), (7820, 25829), (8993, 22460), (10580, 19091), (11230, 17986)]