19450060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 48263040

約数和(自身を除く): 28812980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 223, 245, 356, 445, 446, 490, 623, 890, 892, 980, 1115, 1246, 1561, 1780, 2230, 2492, 3115, 3122, 4361, 4460, 6230, 6244, 7805, 8722, 10927, 12460, 15610, 17444, 19847, 21805, 21854, 31220, 39694, 43610, 43708, 54635, 79388, 87220, 99235, 109270, 138929, 198470, 218540, 277858, 396940, 555716, 694645, 972503, 1389290, 1945006, 2778580, 3890012, 4862515, 9725030, 19450060]

約数ペア:

[(1, 19450060), (2, 9725030), (4, 4862515), (5, 3890012), (7, 2778580), (10, 1945006), (14, 1389290), (20, 972503), (28, 694645), (35, 555716), (49, 396940), (70, 277858), (89, 218540), (98, 198470), (140, 138929), (178, 109270), (196, 99235), (223, 87220), (245, 79388), (356, 54635), (445, 43708), (446, 43610), (490, 39694), (623, 31220), (890, 21854), (892, 21805), (980, 19847), (1115, 17444), (1246, 15610), (1561, 12460), (1780, 10927), (2230, 8722), (2492, 7805), (3115, 6244), (3122, 6230), (4361, 4460)]