289553680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2003}}^1$

素因数の和:2168

約数の個数: 80

約数和(自身を含む): 730578240

約数和(自身を除く): 441024560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 139, 208, 260, 278, 520, 556, 695, 1040, 1112, 1390, 1807, 2003, 2224, 2780, 3614, 4006, 5560, 7228, 8012, 9035, 10015, 11120, 14456, 16024, 18070, 20030, 26039, 28912, 32048, 36140, 40060, 52078, 72280, 80120, 104156, 130195, 144560, 160240, 208312, 260390, 278417, 416624, 520780, 556834, 1041560, 1113668, 1392085, 2083120, 2227336, 2784170, 3619421, 4454672, 5568340, 7238842, 11136680, 14477684, 18097105, 22273360, 28955368, 36194210, 57910736, 72388420, 144776840, 289553680]

約数ペア:

[(1, 289553680), (2, 144776840), (4, 72388420), (5, 57910736), (8, 36194210), (10, 28955368), (13, 22273360), (16, 18097105), (20, 14477684), (26, 11136680), (40, 7238842), (52, 5568340), (65, 4454672), (80, 3619421), (104, 2784170), (130, 2227336), (139, 2083120), (208, 1392085), (260, 1113668), (278, 1041560), (520, 556834), (556, 520780), (695, 416624), (1040, 278417), (1112, 260390), (1390, 208312), (1807, 160240), (2003, 144560), (2224, 130195), (2780, 104156), (3614, 80120), (4006, 72280), (5560, 52078), (7228, 40060), (8012, 36140), (9035, 32048), (10015, 28912), (11120, 26039), (14456, 20030), (16024, 18070)]