279320220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25439}}^1$

素因数の和:25515

約数の個数: 72

約数和(自身を含む): 861194880

約数和(自身を除く): 581874660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 25439, 50878, 76317, 101756, 127195, 152634, 228951, 254390, 305268, 381585, 457902, 508780, 763170, 915804, 1144755, 1526340, 1551779, 2289510, 3103558, 4579020, 4655337, 6207116, 7758895, 9310674, 13966011, 15517790, 18621348, 23276685, 27932022, 31035580, 46553370, 55864044, 69830055, 93106740, 139660110, 279320220]

約数ペア:

[(1, 279320220), (2, 139660110), (3, 93106740), (4, 69830055), (5, 55864044), (6, 46553370), (9, 31035580), (10, 27932022), (12, 23276685), (15, 18621348), (18, 15517790), (20, 13966011), (30, 9310674), (36, 7758895), (45, 6207116), (60, 4655337), (61, 4579020), (90, 3103558), (122, 2289510), (180, 1551779), (183, 1526340), (244, 1144755), (305, 915804), (366, 763170), (549, 508780), (610, 457902), (732, 381585), (915, 305268), (1098, 254390), (1220, 228951), (1830, 152634), (2196, 127195), (2745, 101756), (3660, 76317), (5490, 50878), (10980, 25439)]