19280380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8101}}^1$

素因数の和:8134

約数の個数: 48

約数和(自身を含む): 49000896

約数和(自身を除く): 29720516

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8101, 16202, 32404, 40505, 56707, 81010, 113414, 137717, 162020, 226828, 275434, 283535, 550868, 567070, 688585, 964019, 1134140, 1377170, 1928038, 2754340, 3856076, 4820095, 9640190, 19280380]

約数ペア:

[(1, 19280380), (2, 9640190), (4, 4820095), (5, 3856076), (7, 2754340), (10, 1928038), (14, 1377170), (17, 1134140), (20, 964019), (28, 688585), (34, 567070), (35, 550868), (68, 283535), (70, 275434), (85, 226828), (119, 162020), (140, 137717), (170, 113414), (238, 81010), (340, 56707), (476, 40505), (595, 32404), (1190, 16202), (2380, 8101)]