221432008

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{557}}^1$

素因数の和:830

約数の個数: 64

約数和(自身を含む): 492825600

約数和(自身を除く): 271393592

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 229, 248, 434, 458, 557, 868, 916, 1114, 1603, 1736, 1832, 2228, 3206, 3899, 4456, 6412, 7099, 7798, 12824, 14198, 15596, 17267, 28396, 31192, 34534, 49693, 56792, 69068, 99386, 120869, 127553, 138136, 198772, 241738, 255106, 397544, 483476, 510212, 892871, 966952, 1020424, 1785742, 3571484, 3954143, 7142968, 7908286, 15816572, 27679001, 31633144, 55358002, 110716004, 221432008]

約数ペア:

[(1, 221432008), (2, 110716004), (4, 55358002), (7, 31633144), (8, 27679001), (14, 15816572), (28, 7908286), (31, 7142968), (56, 3954143), (62, 3571484), (124, 1785742), (217, 1020424), (229, 966952), (248, 892871), (434, 510212), (458, 483476), (557, 397544), (868, 255106), (916, 241738), (1114, 198772), (1603, 138136), (1736, 127553), (1832, 120869), (2228, 99386), (3206, 69068), (3899, 56792), (4456, 49693), (6412, 34534), (7099, 31192), (7798, 28396), (12824, 17267), (14198, 15596)]