221908260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{75479}}^1$

素因数の和:75505

約数の個数: 72

約数和(自身を含む): 722796480

約数和(自身を除く): 500888220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 75479, 150958, 226437, 301916, 377395, 452874, 528353, 754790, 905748, 1056706, 1132185, 1509580, 1585059, 2113412, 2264370, 2641765, 3170118, 3698471, 4528740, 5283530, 6340236, 7396942, 7925295, 10567060, 11095413, 14793884, 15850590, 18492355, 22190826, 31701180, 36984710, 44381652, 55477065, 73969420, 110954130, 221908260]

約数ペア:

[(1, 221908260), (2, 110954130), (3, 73969420), (4, 55477065), (5, 44381652), (6, 36984710), (7, 31701180), (10, 22190826), (12, 18492355), (14, 15850590), (15, 14793884), (20, 11095413), (21, 10567060), (28, 7925295), (30, 7396942), (35, 6340236), (42, 5283530), (49, 4528740), (60, 3698471), (70, 3170118), (84, 2641765), (98, 2264370), (105, 2113412), (140, 1585059), (147, 1509580), (196, 1132185), (210, 1056706), (245, 905748), (294, 754790), (420, 528353), (490, 452874), (588, 377395), (735, 301916), (980, 226437), (1470, 150958), (2940, 75479)]