638792

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:102

約数の個数: 64

約数和(自身を含む): 1607040

約数和(自身を除く): 968248

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 56, 61, 68, 77, 88, 119, 122, 136, 154, 187, 238, 244, 308, 374, 427, 476, 488, 616, 671, 748, 854, 952, 1037, 1309, 1342, 1496, 1708, 2074, 2618, 2684, 3416, 4148, 4697, 5236, 5368, 7259, 8296, 9394, 10472, 11407, 14518, 18788, 22814, 29036, 37576, 45628, 58072, 79849, 91256, 159698, 319396, 638792]

約数ペア:

[(1, 638792), (2, 319396), (4, 159698), (7, 91256), (8, 79849), (11, 58072), (14, 45628), (17, 37576), (22, 29036), (28, 22814), (34, 18788), (44, 14518), (56, 11407), (61, 10472), (68, 9394), (77, 8296), (88, 7259), (119, 5368), (122, 5236), (136, 4697), (154, 4148), (187, 3416), (238, 2684), (244, 2618), (308, 2074), (374, 1708), (427, 1496), (476, 1342), (488, 1309), (616, 1037), (671, 952), (748, 854)]