19801664

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:315

約数の個数: 56

約数和(自身を含む): 41696640

約数和(自身を除く): 21894976

約数列:

[1, 2, 4, 8, 16, 29, 32, 47, 58, 64, 94, 116, 188, 227, 232, 376, 454, 464, 752, 908, 928, 1363, 1504, 1816, 1856, 2726, 3008, 3632, 5452, 6583, 7264, 10669, 10904, 13166, 14528, 21338, 21808, 26332, 42676, 43616, 52664, 85352, 87232, 105328, 170704, 210656, 309401, 341408, 421312, 618802, 682816, 1237604, 2475208, 4950416, 9900832, 19801664]

約数ペア:

[(1, 19801664), (2, 9900832), (4, 4950416), (8, 2475208), (16, 1237604), (29, 682816), (32, 618802), (47, 421312), (58, 341408), (64, 309401), (94, 210656), (116, 170704), (188, 105328), (227, 87232), (232, 85352), (376, 52664), (454, 43616), (464, 42676), (752, 26332), (908, 21808), (928, 21338), (1363, 14528), (1504, 13166), (1816, 10904), (1856, 10669), (2726, 7264), (3008, 6583), (3632, 5452)]