920357140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{8293}}^1$

素因数の和:8512

約数の個数: 48

約数和(自身を含む): 2006484480

約数和(自身を除く): 1086127340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 179, 310, 358, 620, 716, 895, 1790, 3580, 5549, 8293, 11098, 16586, 22196, 27745, 33172, 41465, 55490, 82930, 110980, 165860, 257083, 514166, 1028332, 1285415, 1484447, 2570830, 2968894, 5141660, 5937788, 7422235, 14844470, 29688940, 46017857, 92035714, 184071428, 230089285, 460178570, 920357140]

約数ペア:

[(1, 920357140), (2, 460178570), (4, 230089285), (5, 184071428), (10, 92035714), (20, 46017857), (31, 29688940), (62, 14844470), (124, 7422235), (155, 5937788), (179, 5141660), (310, 2968894), (358, 2570830), (620, 1484447), (716, 1285415), (895, 1028332), (1790, 514166), (3580, 257083), (5549, 165860), (8293, 110980), (11098, 82930), (16586, 55490), (22196, 41465), (27745, 33172)]