331321000

素因数分解:

$2^3\times 5^3\times {\mathrm{41}}^1\times {\mathrm{8081}}^1$

素因数の和:8143

約数の個数: 64

約数和(自身を含む): 794298960

約数和(自身を除く): 462977960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 328, 410, 500, 820, 1000, 1025, 1640, 2050, 4100, 5125, 8081, 8200, 10250, 16162, 20500, 32324, 40405, 41000, 64648, 80810, 161620, 202025, 323240, 331321, 404050, 662642, 808100, 1010125, 1325284, 1616200, 1656605, 2020250, 2650568, 3313210, 4040500, 6626420, 8081000, 8283025, 13252840, 16566050, 33132100, 41415125, 66264200, 82830250, 165660500, 331321000]

約数ペア:

[(1, 331321000), (2, 165660500), (4, 82830250), (5, 66264200), (8, 41415125), (10, 33132100), (20, 16566050), (25, 13252840), (40, 8283025), (41, 8081000), (50, 6626420), (82, 4040500), (100, 3313210), (125, 2650568), (164, 2020250), (200, 1656605), (205, 1616200), (250, 1325284), (328, 1010125), (410, 808100), (500, 662642), (820, 404050), (1000, 331321), (1025, 323240), (1640, 202025), (2050, 161620), (4100, 80810), (5125, 64648), (8081, 41000), (8200, 40405), (10250, 32324), (16162, 20500)]