18686490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 47112192

約数和(自身を除く): 28425702

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 71, 93, 142, 155, 186, 213, 283, 310, 355, 426, 465, 566, 710, 849, 930, 1065, 1415, 1698, 2130, 2201, 2830, 4245, 4402, 6603, 8490, 8773, 11005, 13206, 17546, 20093, 22010, 26319, 33015, 40186, 43865, 52638, 60279, 66030, 87730, 100465, 120558, 131595, 200930, 263190, 301395, 602790, 622883, 1245766, 1868649, 3114415, 3737298, 6228830, 9343245, 18686490]

約数ペア:

[(1, 18686490), (2, 9343245), (3, 6228830), (5, 3737298), (6, 3114415), (10, 1868649), (15, 1245766), (30, 622883), (31, 602790), (62, 301395), (71, 263190), (93, 200930), (142, 131595), (155, 120558), (186, 100465), (213, 87730), (283, 66030), (310, 60279), (355, 52638), (426, 43865), (465, 40186), (566, 33015), (710, 26319), (849, 22010), (930, 20093), (1065, 17546), (1415, 13206), (1698, 11005), (2130, 8773), (2201, 8490), (2830, 6603), (4245, 4402)]