261696358

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 529514496

約数和(自身を除く): 267818138

約数列:

[1, 2, 7, 11, 14, 22, 31, 41, 49, 62, 77, 82, 98, 154, 191, 217, 287, 341, 382, 434, 451, 539, 574, 682, 902, 1078, 1271, 1337, 1519, 2009, 2101, 2387, 2542, 2674, 3038, 3157, 4018, 4202, 4774, 5921, 6314, 7831, 8897, 9359, 11842, 13981, 14707, 15662, 16709, 17794, 18718, 22099, 27962, 29414, 33418, 41447, 44198, 54817, 62279, 65131, 82894, 86141, 97867, 102949, 109634, 124558, 130262, 172282, 195734, 205898, 242761, 290129, 383719, 455917, 485522, 580258, 602987, 685069, 767438, 911834, 1205974, 1370138, 1699327, 2670371, 3191419, 3398654, 4220909, 5340742, 6382838, 8441818, 11895289, 18692597, 23790578, 37385194, 130848179, 261696358]

約数ペア:

[(1, 261696358), (2, 130848179), (7, 37385194), (11, 23790578), (14, 18692597), (22, 11895289), (31, 8441818), (41, 6382838), (49, 5340742), (62, 4220909), (77, 3398654), (82, 3191419), (98, 2670371), (154, 1699327), (191, 1370138), (217, 1205974), (287, 911834), (341, 767438), (382, 685069), (434, 602987), (451, 580258), (539, 485522), (574, 455917), (682, 383719), (902, 290129), (1078, 242761), (1271, 205898), (1337, 195734), (1519, 172282), (2009, 130262), (2101, 124558), (2387, 109634), (2542, 102949), (2674, 97867), (3038, 86141), (3157, 82894), (4018, 65131), (4202, 62279), (4774, 54817), (5921, 44198), (6314, 41447), (7831, 33418), (8897, 29414), (9359, 27962), (11842, 22099), (13981, 18718), (14707, 17794), (15662, 16709)]