81795285

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:280

約数の個数: 128

約数和(自身を含む): 180633600

約数和(自身を除く): 98838315

約数列:

[1, 3, 5, 9, 11, 13, 15, 19, 27, 33, 39, 45, 55, 57, 65, 95, 99, 117, 135, 143, 165, 171, 195, 209, 223, 247, 285, 297, 351, 429, 495, 513, 585, 627, 669, 715, 741, 855, 1045, 1115, 1235, 1287, 1485, 1755, 1881, 2007, 2145, 2223, 2453, 2565, 2717, 2899, 3135, 3345, 3705, 3861, 4237, 5643, 6021, 6435, 6669, 7359, 8151, 8697, 9405, 10035, 11115, 12265, 12711, 13585, 14495, 19305, 21185, 22077, 24453, 26091, 28215, 30105, 31889, 33345, 36795, 38133, 40755, 43485, 46607, 55081, 63555, 66231, 73359, 78273, 95667, 110385, 114399, 122265, 130455, 139821, 159445, 165243, 190665, 233035, 275405, 287001, 331155, 366795, 391365, 419463, 478335, 495729, 571995, 605891, 699105, 826215, 861003, 1258389, 1435005, 1487187, 1817673, 2097315, 2478645, 3029455, 4305015, 5453019, 6291945, 7435935, 9088365, 16359057, 27265095, 81795285]

約数ペア:

[(1, 81795285), (3, 27265095), (5, 16359057), (9, 9088365), (11, 7435935), (13, 6291945), (15, 5453019), (19, 4305015), (27, 3029455), (33, 2478645), (39, 2097315), (45, 1817673), (55, 1487187), (57, 1435005), (65, 1258389), (95, 861003), (99, 826215), (117, 699105), (135, 605891), (143, 571995), (165, 495729), (171, 478335), (195, 419463), (209, 391365), (223, 366795), (247, 331155), (285, 287001), (297, 275405), (351, 233035), (429, 190665), (495, 165243), (513, 159445), (585, 139821), (627, 130455), (669, 122265), (715, 114399), (741, 110385), (855, 95667), (1045, 78273), (1115, 73359), (1235, 66231), (1287, 63555), (1485, 55081), (1755, 46607), (1881, 43485), (2007, 40755), (2145, 38133), (2223, 36795), (2453, 33345), (2565, 31889), (2717, 30105), (2899, 28215), (3135, 26091), (3345, 24453), (3705, 22077), (3861, 21185), (4237, 19305), (5643, 14495), (6021, 13585), (6435, 12711), (6669, 12265), (7359, 11115), (8151, 10035), (8697, 9405)]