12239420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 27955200

約数和(自身を除く): 15715780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1039, 1178, 2078, 2356, 2945, 4156, 5195, 5890, 10390, 11780, 19741, 20780, 32209, 39482, 64418, 78964, 98705, 128836, 161045, 197410, 322090, 394820, 611971, 644180, 1223942, 2447884, 3059855, 6119710, 12239420]

約数ペア:

[(1, 12239420), (2, 6119710), (4, 3059855), (5, 2447884), (10, 1223942), (19, 644180), (20, 611971), (31, 394820), (38, 322090), (62, 197410), (76, 161045), (95, 128836), (124, 98705), (155, 78964), (190, 64418), (310, 39482), (380, 32209), (589, 20780), (620, 19741), (1039, 11780), (1178, 10390), (2078, 5890), (2356, 5195), (2945, 4156)]