30158660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6949}}^1$

素因数の和:6996

約数の個数: 48

約数和(自身を含む): 74726400

約数和(自身を除く): 44567740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6949, 13898, 27796, 34745, 48643, 69490, 97286, 138980, 194572, 215419, 243215, 430838, 486430, 861676, 972860, 1077095, 1507933, 2154190, 3015866, 4308380, 6031732, 7539665, 15079330, 30158660]

約数ペア:

[(1, 30158660), (2, 15079330), (4, 7539665), (5, 6031732), (7, 4308380), (10, 3015866), (14, 2154190), (20, 1507933), (28, 1077095), (31, 972860), (35, 861676), (62, 486430), (70, 430838), (124, 243215), (140, 215419), (155, 194572), (217, 138980), (310, 97286), (434, 69490), (620, 48643), (868, 34745), (1085, 27796), (2170, 13898), (4340, 6949)]