19962512

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:447

約数の個数: 40

約数和(自身を含む): 40330752

約数和(自身を除く): 20368240

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 167, 241, 248, 334, 482, 496, 668, 964, 1336, 1928, 2672, 3856, 5177, 7471, 10354, 14942, 20708, 29884, 40247, 41416, 59768, 80494, 82832, 119536, 160988, 321976, 643952, 1247657, 2495314, 4990628, 9981256, 19962512]

約数ペア:

[(1, 19962512), (2, 9981256), (4, 4990628), (8, 2495314), (16, 1247657), (31, 643952), (62, 321976), (124, 160988), (167, 119536), (241, 82832), (248, 80494), (334, 59768), (482, 41416), (496, 40247), (668, 29884), (964, 20708), (1336, 14942), (1928, 10354), (2672, 7471), (3856, 5177)]