78246800

素因数分解:

$2^4\times 5^2\times {\mathrm{199}}^1\times {\mathrm{983}}^1$

素因数の和:1200

約数の個数: 60

約数和(自身を含む): 189124800

約数和(自身を除く): 110878000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 199, 200, 398, 400, 796, 983, 995, 1592, 1966, 1990, 3184, 3932, 3980, 4915, 4975, 7864, 7960, 9830, 9950, 15728, 15920, 19660, 19900, 24575, 39320, 39800, 49150, 78640, 79600, 98300, 195617, 196600, 391234, 393200, 782468, 978085, 1564936, 1956170, 3129872, 3912340, 4890425, 7824680, 9780850, 15649360, 19561700, 39123400, 78246800]

約数ペア:

[(1, 78246800), (2, 39123400), (4, 19561700), (5, 15649360), (8, 9780850), (10, 7824680), (16, 4890425), (20, 3912340), (25, 3129872), (40, 1956170), (50, 1564936), (80, 978085), (100, 782468), (199, 393200), (200, 391234), (398, 196600), (400, 195617), (796, 98300), (983, 79600), (995, 78640), (1592, 49150), (1966, 39800), (1990, 39320), (3184, 24575), (3932, 19900), (3980, 19660), (4915, 15920), (4975, 15728), (7864, 9950), (7960, 9830)]