388309040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{693409}}^1$

素因数の和:693429

約数の個数: 40

約数和(自身を含む): 1031794080

約数和(自身を除く): 643485040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 693409, 1386818, 2773636, 3467045, 4853863, 5547272, 6934090, 9707726, 11094544, 13868180, 19415452, 24269315, 27736360, 38830904, 48538630, 55472720, 77661808, 97077260, 194154520, 388309040]

約数ペア:

[(1, 388309040), (2, 194154520), (4, 97077260), (5, 77661808), (7, 55472720), (8, 48538630), (10, 38830904), (14, 27736360), (16, 24269315), (20, 19415452), (28, 13868180), (35, 11094544), (40, 9707726), (56, 6934090), (70, 5547272), (80, 4853863), (112, 3467045), (140, 2773636), (280, 1386818), (560, 693409)]