668770228

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1087}}^1$

素因数の和:1221

約数の個数: 72

約数和(自身を含む): 1413468672

約数和(自身を除く): 744698444

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 73, 86, 98, 146, 172, 196, 292, 301, 511, 602, 1022, 1087, 1204, 2044, 2107, 2174, 3139, 3577, 4214, 4348, 6278, 7154, 7609, 8428, 12556, 14308, 15218, 21973, 30436, 43946, 46741, 53263, 79351, 87892, 93482, 106526, 153811, 158702, 186964, 213052, 307622, 317404, 327187, 555457, 615244, 654374, 1110914, 1308748, 2221828, 2290309, 3412093, 3888199, 4580618, 6824186, 7776398, 9161236, 13648372, 15552796, 23884651, 47769302, 95538604, 167192557, 334385114, 668770228]

約数ペア:

[(1, 668770228), (2, 334385114), (4, 167192557), (7, 95538604), (14, 47769302), (28, 23884651), (43, 15552796), (49, 13648372), (73, 9161236), (86, 7776398), (98, 6824186), (146, 4580618), (172, 3888199), (196, 3412093), (292, 2290309), (301, 2221828), (511, 1308748), (602, 1110914), (1022, 654374), (1087, 615244), (1204, 555457), (2044, 327187), (2107, 317404), (2174, 307622), (3139, 213052), (3577, 186964), (4214, 158702), (4348, 153811), (6278, 106526), (7154, 93482), (7609, 87892), (8428, 79351), (12556, 53263), (14308, 46741), (15218, 43946), (21973, 30436)]