287404348

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{971}}^1$

素因数の和:1055

約数の個数: 72

約数和(自身を含む): 648611712

約数和(自身を除く): 361207364

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 961, 971, 1364, 1922, 1942, 2387, 3844, 3884, 4774, 6727, 6797, 9548, 10571, 10681, 13454, 13594, 21142, 21362, 26908, 27188, 30101, 42284, 42724, 60202, 73997, 74767, 120404, 147994, 149534, 210707, 295988, 299068, 331111, 421414, 662222, 842828, 933131, 1324444, 1866262, 2317777, 3732524, 4635554, 6531917, 9271108, 10264441, 13063834, 20528882, 26127668, 41057764, 71851087, 143702174, 287404348]

約数ペア:

[(1, 287404348), (2, 143702174), (4, 71851087), (7, 41057764), (11, 26127668), (14, 20528882), (22, 13063834), (28, 10264441), (31, 9271108), (44, 6531917), (62, 4635554), (77, 3732524), (124, 2317777), (154, 1866262), (217, 1324444), (308, 933131), (341, 842828), (434, 662222), (682, 421414), (868, 331111), (961, 299068), (971, 295988), (1364, 210707), (1922, 149534), (1942, 147994), (2387, 120404), (3844, 74767), (3884, 73997), (4774, 60202), (6727, 42724), (6797, 42284), (9548, 30101), (10571, 27188), (10681, 26908), (13454, 21362), (13594, 21142)]