18065504

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:763

約数の個数: 48

約数和(自身を含む): 38364480

約数和(自身を除く): 20298976

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 76, 86, 152, 172, 304, 344, 608, 688, 691, 817, 1376, 1382, 1634, 2764, 3268, 5528, 6536, 11056, 13072, 13129, 22112, 26144, 26258, 29713, 52516, 59426, 105032, 118852, 210064, 237704, 420128, 475408, 564547, 950816, 1129094, 2258188, 4516376, 9032752, 18065504]

約数ペア:

[(1, 18065504), (2, 9032752), (4, 4516376), (8, 2258188), (16, 1129094), (19, 950816), (32, 564547), (38, 475408), (43, 420128), (76, 237704), (86, 210064), (152, 118852), (172, 105032), (304, 59426), (344, 52516), (608, 29713), (688, 26258), (691, 26144), (817, 22112), (1376, 13129), (1382, 13072), (1634, 11056), (2764, 6536), (3268, 5528)]