31287990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2037

約数の個数: 64

約数和(自身を含む): 82114560

約数和(自身を除く): 50826570

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 31, 34, 51, 62, 85, 93, 102, 155, 170, 186, 255, 310, 465, 510, 527, 930, 1054, 1581, 1979, 2635, 3162, 3958, 5270, 5937, 7905, 9895, 11874, 15810, 19790, 29685, 33643, 59370, 61349, 67286, 100929, 122698, 168215, 184047, 201858, 306745, 336430, 368094, 504645, 613490, 920235, 1009290, 1042933, 1840470, 2085866, 3128799, 5214665, 6257598, 10429330, 15643995, 31287990]

約数ペア:

[(1, 31287990), (2, 15643995), (3, 10429330), (5, 6257598), (6, 5214665), (10, 3128799), (15, 2085866), (17, 1840470), (30, 1042933), (31, 1009290), (34, 920235), (51, 613490), (62, 504645), (85, 368094), (93, 336430), (102, 306745), (155, 201858), (170, 184047), (186, 168215), (255, 122698), (310, 100929), (465, 67286), (510, 61349), (527, 59370), (930, 33643), (1054, 29685), (1581, 19790), (1979, 15810), (2635, 11874), (3162, 9895), (3958, 7905), (5270, 5937)]