28967600

素因数分解:

$2^4\times 5^2\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:678

約数の個数: 60

約数和(自身を含む): 70229880

約数和(自身を除く): 41262280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 139, 200, 278, 400, 521, 556, 695, 1042, 1112, 1390, 2084, 2224, 2605, 2780, 3475, 4168, 5210, 5560, 6950, 8336, 10420, 11120, 13025, 13900, 20840, 26050, 27800, 41680, 52100, 55600, 72419, 104200, 144838, 208400, 289676, 362095, 579352, 724190, 1158704, 1448380, 1810475, 2896760, 3620950, 5793520, 7241900, 14483800, 28967600]

約数ペア:

[(1, 28967600), (2, 14483800), (4, 7241900), (5, 5793520), (8, 3620950), (10, 2896760), (16, 1810475), (20, 1448380), (25, 1158704), (40, 724190), (50, 579352), (80, 362095), (100, 289676), (139, 208400), (200, 144838), (278, 104200), (400, 72419), (521, 55600), (556, 52100), (695, 41680), (1042, 27800), (1112, 26050), (1390, 20840), (2084, 13900), (2224, 13025), (2605, 11120), (2780, 10420), (3475, 8336), (4168, 6950), (5210, 5560)]