287298928

素因数分解:

$2^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{11503}}^1$

素因数の和:11741

約数の個数: 40

約数和(自身を含む): 639070208

約数和(自身を除く): 351771280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 223, 446, 892, 1561, 1784, 3122, 3568, 6244, 11503, 12488, 23006, 24976, 46012, 80521, 92024, 161042, 184048, 322084, 644168, 1288336, 2565169, 5130338, 10260676, 17956183, 20521352, 35912366, 41042704, 71824732, 143649464, 287298928]

約数ペア:

[(1, 287298928), (2, 143649464), (4, 71824732), (7, 41042704), (8, 35912366), (14, 20521352), (16, 17956183), (28, 10260676), (56, 5130338), (112, 2565169), (223, 1288336), (446, 644168), (892, 322084), (1561, 184048), (1784, 161042), (3122, 92024), (3568, 80521), (6244, 46012), (11503, 24976), (12488, 23006)]