28909520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{733}}^1$

素因数の和:792

約数の個数: 80

約数和(自身を含む): 73722960

約数和(自身を除く): 44813440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 733, 986, 1160, 1360, 1466, 1972, 2320, 2465, 2932, 3665, 3944, 4930, 5864, 7330, 7888, 9860, 11728, 12461, 14660, 19720, 21257, 24922, 29320, 39440, 42514, 49844, 58640, 62305, 85028, 99688, 106285, 124610, 170056, 199376, 212570, 249220, 340112, 361369, 425140, 498440, 722738, 850280, 996880, 1445476, 1700560, 1806845, 2890952, 3613690, 5781904, 7227380, 14454760, 28909520]

約数ペア:

[(1, 28909520), (2, 14454760), (4, 7227380), (5, 5781904), (8, 3613690), (10, 2890952), (16, 1806845), (17, 1700560), (20, 1445476), (29, 996880), (34, 850280), (40, 722738), (58, 498440), (68, 425140), (80, 361369), (85, 340112), (116, 249220), (136, 212570), (145, 199376), (170, 170056), (232, 124610), (272, 106285), (290, 99688), (340, 85028), (464, 62305), (493, 58640), (580, 49844), (680, 42514), (733, 39440), (986, 29320), (1160, 24922), (1360, 21257), (1466, 19720), (1972, 14660), (2320, 12461), (2465, 11728), (2932, 9860), (3665, 7888), (3944, 7330), (4930, 5864)]