19317680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 28893520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 179, 190, 284, 304, 355, 358, 380, 568, 710, 716, 760, 895, 1136, 1349, 1420, 1432, 1520, 1790, 2698, 2840, 2864, 3401, 3580, 5396, 5680, 6745, 6802, 7160, 10792, 12709, 13490, 13604, 14320, 17005, 21584, 25418, 26980, 27208, 34010, 50836, 53960, 54416, 63545, 68020, 101672, 107920, 127090, 136040, 203344, 241471, 254180, 272080, 482942, 508360, 965884, 1016720, 1207355, 1931768, 2414710, 3863536, 4829420, 9658840, 19317680]

約数ペア:

[(1, 19317680), (2, 9658840), (4, 4829420), (5, 3863536), (8, 2414710), (10, 1931768), (16, 1207355), (19, 1016720), (20, 965884), (38, 508360), (40, 482942), (71, 272080), (76, 254180), (80, 241471), (95, 203344), (142, 136040), (152, 127090), (179, 107920), (190, 101672), (284, 68020), (304, 63545), (355, 54416), (358, 53960), (380, 50836), (568, 34010), (710, 27208), (716, 26980), (760, 25418), (895, 21584), (1136, 17005), (1349, 14320), (1420, 13604), (1432, 13490), (1520, 12709), (1790, 10792), (2698, 7160), (2840, 6802), (2864, 6745), (3401, 5680), (3580, 5396)]