261951216

素因数分解:

$2^4\times 3^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:678

約数の個数: 80

約数和(自身を含む): 690622464

約数和(自身を除く): 428671248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 97, 127, 194, 254, 291, 381, 388, 443, 508, 582, 762, 776, 886, 1016, 1164, 1329, 1524, 1552, 1772, 2032, 2328, 2658, 3048, 3544, 4656, 5316, 6096, 7088, 10632, 12319, 21264, 24638, 36957, 42971, 49276, 56261, 73914, 85942, 98552, 112522, 128913, 147828, 168783, 171884, 197104, 225044, 257826, 295656, 337566, 343768, 450088, 515652, 591312, 675132, 687536, 900176, 1031304, 1350264, 2062608, 2700528, 5457317, 10914634, 16371951, 21829268, 32743902, 43658536, 65487804, 87317072, 130975608, 261951216]

約数ペア:

[(1, 261951216), (2, 130975608), (3, 87317072), (4, 65487804), (6, 43658536), (8, 32743902), (12, 21829268), (16, 16371951), (24, 10914634), (48, 5457317), (97, 2700528), (127, 2062608), (194, 1350264), (254, 1031304), (291, 900176), (381, 687536), (388, 675132), (443, 591312), (508, 515652), (582, 450088), (762, 343768), (776, 337566), (886, 295656), (1016, 257826), (1164, 225044), (1329, 197104), (1524, 171884), (1552, 168783), (1772, 147828), (2032, 128913), (2328, 112522), (2658, 98552), (3048, 85942), (3544, 73914), (4656, 56261), (5316, 49276), (6096, 42971), (7088, 36957), (10632, 24638), (12319, 21264)]