256291320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1721}}^1$

素因数の和:1825

約数の個数: 128

約数和(自身を含む): 825733440

約数和(自身を除く): 569442120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 73, 85, 102, 120, 136, 146, 170, 204, 219, 255, 292, 340, 365, 408, 438, 510, 584, 680, 730, 876, 1020, 1095, 1241, 1460, 1721, 1752, 2040, 2190, 2482, 2920, 3442, 3723, 4380, 4964, 5163, 6205, 6884, 7446, 8605, 8760, 9928, 10326, 12410, 13768, 14892, 17210, 18615, 20652, 24820, 25815, 29257, 29784, 34420, 37230, 41304, 49640, 51630, 58514, 68840, 74460, 87771, 103260, 117028, 125633, 146285, 148920, 175542, 206520, 234056, 251266, 292570, 351084, 376899, 438855, 502532, 585140, 628165, 702168, 753798, 877710, 1005064, 1170280, 1256330, 1507596, 1755420, 1884495, 2135761, 2512660, 3015192, 3510840, 3768990, 4271522, 5025320, 6407283, 7537980, 8543044, 10678805, 12814566, 15075960, 17086088, 21357610, 25629132, 32036415, 42715220, 51258264, 64072830, 85430440, 128145660, 256291320]

約数ペア:

[(1, 256291320), (2, 128145660), (3, 85430440), (4, 64072830), (5, 51258264), (6, 42715220), (8, 32036415), (10, 25629132), (12, 21357610), (15, 17086088), (17, 15075960), (20, 12814566), (24, 10678805), (30, 8543044), (34, 7537980), (40, 6407283), (51, 5025320), (60, 4271522), (68, 3768990), (73, 3510840), (85, 3015192), (102, 2512660), (120, 2135761), (136, 1884495), (146, 1755420), (170, 1507596), (204, 1256330), (219, 1170280), (255, 1005064), (292, 877710), (340, 753798), (365, 702168), (408, 628165), (438, 585140), (510, 502532), (584, 438855), (680, 376899), (730, 351084), (876, 292570), (1020, 251266), (1095, 234056), (1241, 206520), (1460, 175542), (1721, 148920), (1752, 146285), (2040, 125633), (2190, 117028), (2482, 103260), (2920, 87771), (3442, 74460), (3723, 68840), (4380, 58514), (4964, 51630), (5163, 49640), (6205, 41304), (6884, 37230), (7446, 34420), (8605, 29784), (8760, 29257), (9928, 25815), (10326, 24820), (12410, 20652), (13768, 18615), (14892, 17210)]