20506140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3079}}^1$

素因数の和:3131

約数の個数: 72

約数和(自身を含む): 63903840

約数和(自身を除く): 43397700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3079, 3330, 6158, 6660, 9237, 12316, 15395, 18474, 27711, 30790, 36948, 46185, 55422, 61580, 92370, 110844, 113923, 138555, 184740, 227846, 277110, 341769, 455692, 554220, 569615, 683538, 1025307, 1139230, 1367076, 1708845, 2050614, 2278460, 3417690, 4101228, 5126535, 6835380, 10253070, 20506140]

約数ペア:

[(1, 20506140), (2, 10253070), (3, 6835380), (4, 5126535), (5, 4101228), (6, 3417690), (9, 2278460), (10, 2050614), (12, 1708845), (15, 1367076), (18, 1139230), (20, 1025307), (30, 683538), (36, 569615), (37, 554220), (45, 455692), (60, 341769), (74, 277110), (90, 227846), (111, 184740), (148, 138555), (180, 113923), (185, 110844), (222, 92370), (333, 61580), (370, 55422), (444, 46185), (555, 36948), (666, 30790), (740, 27711), (1110, 18474), (1332, 15395), (1665, 12316), (2220, 9237), (3079, 6660), (3330, 6158)]