320280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 1023840

約数和(自身を除く): 703560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 157, 170, 204, 255, 314, 340, 408, 471, 510, 628, 680, 785, 942, 1020, 1256, 1570, 1884, 2040, 2355, 2669, 3140, 3768, 4710, 5338, 6280, 8007, 9420, 10676, 13345, 16014, 18840, 21352, 26690, 32028, 40035, 53380, 64056, 80070, 106760, 160140, 320280]

約数ペア:

[(1, 320280), (2, 160140), (3, 106760), (4, 80070), (5, 64056), (6, 53380), (8, 40035), (10, 32028), (12, 26690), (15, 21352), (17, 18840), (20, 16014), (24, 13345), (30, 10676), (34, 9420), (40, 8007), (51, 6280), (60, 5338), (68, 4710), (85, 3768), (102, 3140), (120, 2669), (136, 2355), (157, 2040), (170, 1884), (204, 1570), (255, 1256), (314, 1020), (340, 942), (408, 785), (471, 680), (510, 628)]