180022640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{321469}}^1$

素因数の和:321489

約数の個数: 40

約数和(自身を含む): 478347360

約数和(自身を除く): 298324720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 321469, 642938, 1285876, 1607345, 2250283, 2571752, 3214690, 4500566, 5143504, 6429380, 9001132, 11251415, 12858760, 18002264, 22502830, 25717520, 36004528, 45005660, 90011320, 180022640]

約数ペア:

[(1, 180022640), (2, 90011320), (4, 45005660), (5, 36004528), (7, 25717520), (8, 22502830), (10, 18002264), (14, 12858760), (16, 11251415), (20, 9001132), (28, 6429380), (35, 5143504), (40, 4500566), (56, 3214690), (70, 2571752), (80, 2250283), (112, 1607345), (140, 1285876), (280, 642938), (560, 321469)]