18991170064

素因数分解:

$2^4\times {\mathrm{283}}^1\times {\mathrm{1307}}^1\times {\mathrm{3209}}^1$

素因数の和:4807

約数の個数: 40

約数和(自身を含む): 36965178720

約数和(自身を除く): 17974008656

約数列:

[1, 2, 4, 8, 16, 283, 566, 1132, 1307, 2264, 2614, 3209, 4528, 5228, 6418, 10456, 12836, 20912, 25672, 51344, 369881, 739762, 908147, 1479524, 1816294, 2959048, 3632588, 4194163, 5918096, 7265176, 8388326, 14530352, 16776652, 33553304, 67106608, 1186948129, 2373896258, 4747792516, 9495585032, 18991170064]

約数ペア:

[(1, 18991170064), (2, 9495585032), (4, 4747792516), (8, 2373896258), (16, 1186948129), (283, 67106608), (566, 33553304), (1132, 16776652), (1307, 14530352), (2264, 8388326), (2614, 7265176), (3209, 5918096), (4528, 4194163), (5228, 3632588), (6418, 2959048), (10456, 1816294), (12836, 1479524), (20912, 908147), (25672, 739762), (51344, 369881)]