361897420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{1151}}^1$

素因数の和:1438

約数の個数: 48

約数和(自身を含む): 774144000

約数和(自身を除く): 412246580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 199, 316, 395, 398, 790, 796, 995, 1151, 1580, 1990, 2302, 3980, 4604, 5755, 11510, 15721, 23020, 31442, 62884, 78605, 90929, 157210, 181858, 229049, 314420, 363716, 454645, 458098, 909290, 916196, 1145245, 1818580, 2290490, 4580980, 18094871, 36189742, 72379484, 90474355, 180948710, 361897420]

約数ペア:

[(1, 361897420), (2, 180948710), (4, 90474355), (5, 72379484), (10, 36189742), (20, 18094871), (79, 4580980), (158, 2290490), (199, 1818580), (316, 1145245), (395, 916196), (398, 909290), (790, 458098), (796, 454645), (995, 363716), (1151, 314420), (1580, 229049), (1990, 181858), (2302, 157210), (3980, 90929), (4604, 78605), (5755, 62884), (11510, 31442), (15721, 23020)]