289336840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4003}}^1$

素因数の和:4166

約数の個数: 64

約数和(自身を含む): 706305600

約数和(自身を除く): 416968760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 1112, 1390, 1807, 2780, 3614, 4003, 5560, 7228, 8006, 9035, 14456, 16012, 18070, 20015, 32024, 36140, 40030, 52039, 72280, 80060, 104078, 160120, 208156, 260195, 416312, 520390, 556417, 1040780, 1112834, 2081560, 2225668, 2782085, 4451336, 5564170, 7233421, 11128340, 14466842, 22256680, 28933684, 36167105, 57867368, 72334210, 144668420, 289336840]

約数ペア:

[(1, 289336840), (2, 144668420), (4, 72334210), (5, 57867368), (8, 36167105), (10, 28933684), (13, 22256680), (20, 14466842), (26, 11128340), (40, 7233421), (52, 5564170), (65, 4451336), (104, 2782085), (130, 2225668), (139, 2081560), (260, 1112834), (278, 1040780), (520, 556417), (556, 520390), (695, 416312), (1112, 260195), (1390, 208156), (1807, 160120), (2780, 104078), (3614, 80060), (4003, 72280), (5560, 52039), (7228, 40030), (8006, 36140), (9035, 32024), (14456, 20015), (16012, 18070)]