1864756420

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{271}}^1\times {\mathrm{1279}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 3948134400

約数和(自身を除く): 2083377980

約数列:

[1, 2, 4, 5, 10, 20, 269, 271, 538, 542, 1076, 1084, 1279, 1345, 1355, 2558, 2690, 2710, 5116, 5380, 5420, 6395, 12790, 25580, 72899, 145798, 291596, 344051, 346609, 364495, 688102, 693218, 728990, 1376204, 1386436, 1457980, 1720255, 1733045, 3440510, 3466090, 6881020, 6932180, 93237821, 186475642, 372951284, 466189105, 932378210, 1864756420]

約数ペア:

[(1, 1864756420), (2, 932378210), (4, 466189105), (5, 372951284), (10, 186475642), (20, 93237821), (269, 6932180), (271, 6881020), (538, 3466090), (542, 3440510), (1076, 1733045), (1084, 1720255), (1279, 1457980), (1345, 1386436), (1355, 1376204), (2558, 728990), (2690, 693218), (2710, 688102), (5116, 364495), (5380, 346609), (5420, 344051), (6395, 291596), (12790, 145798), (25580, 72899)]