395013680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{120431}}^1$

素因数の和:120485

約数の個数: 40

約数和(自身を含む): 940814784

約数和(自身を除く): 545801104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 120431, 240862, 481724, 602155, 963448, 1204310, 1926896, 2408620, 4817240, 4937671, 9634480, 9875342, 19750684, 24688355, 39501368, 49376710, 79002736, 98753420, 197506840, 395013680]

約数ペア:

[(1, 395013680), (2, 197506840), (4, 98753420), (5, 79002736), (8, 49376710), (10, 39501368), (16, 24688355), (20, 19750684), (40, 9875342), (41, 9634480), (80, 4937671), (82, 4817240), (164, 2408620), (205, 1926896), (328, 1204310), (410, 963448), (656, 602155), (820, 481724), (1640, 240862), (3280, 120431)]