20360560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1361}}^1$

素因数の和:1402

約数の個数: 80

約数和(自身を含む): 54719712

約数和(自身を除く): 34359152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1361, 1496, 1870, 2722, 2992, 3740, 5444, 6805, 7480, 10888, 13610, 14960, 14971, 21776, 23137, 27220, 29942, 46274, 54440, 59884, 74855, 92548, 108880, 115685, 119768, 149710, 185096, 231370, 239536, 254507, 299420, 370192, 462740, 509014, 598840, 925480, 1018028, 1197680, 1272535, 1850960, 2036056, 2545070, 4072112, 5090140, 10180280, 20360560]

約数ペア:

[(1, 20360560), (2, 10180280), (4, 5090140), (5, 4072112), (8, 2545070), (10, 2036056), (11, 1850960), (16, 1272535), (17, 1197680), (20, 1018028), (22, 925480), (34, 598840), (40, 509014), (44, 462740), (55, 370192), (68, 299420), (80, 254507), (85, 239536), (88, 231370), (110, 185096), (136, 149710), (170, 119768), (176, 115685), (187, 108880), (220, 92548), (272, 74855), (340, 59884), (374, 54440), (440, 46274), (680, 29942), (748, 27220), (880, 23137), (935, 21776), (1360, 14971), (1361, 14960), (1496, 13610), (1870, 10888), (2722, 7480), (2992, 6805), (3740, 5444)]