260333440

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:388

約数の個数: 128

約数和(自身を含む): 665856000

約数和(自身を除く): 405522560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 79, 80, 95, 128, 152, 158, 160, 190, 271, 304, 316, 320, 380, 395, 542, 608, 632, 640, 760, 790, 1084, 1216, 1264, 1355, 1501, 1520, 1580, 2168, 2432, 2528, 2710, 3002, 3040, 3160, 4336, 5056, 5149, 5420, 6004, 6080, 6320, 7505, 8672, 10112, 10298, 10840, 12008, 12160, 12640, 15010, 17344, 20596, 21409, 21680, 24016, 25280, 25745, 30020, 34688, 41192, 42818, 43360, 48032, 50560, 51490, 60040, 82384, 85636, 86720, 96064, 102980, 107045, 120080, 164768, 171272, 173440, 192128, 205960, 214090, 240160, 329536, 342544, 406771, 411920, 428180, 480320, 659072, 685088, 813542, 823840, 856360, 960640, 1370176, 1627084, 1647680, 1712720, 2033855, 2740352, 3254168, 3295360, 3425440, 4067710, 6508336, 6850880, 8135420, 13016672, 13701760, 16270840, 26033344, 32541680, 52066688, 65083360, 130166720, 260333440]

約数ペア:

[(1, 260333440), (2, 130166720), (4, 65083360), (5, 52066688), (8, 32541680), (10, 26033344), (16, 16270840), (19, 13701760), (20, 13016672), (32, 8135420), (38, 6850880), (40, 6508336), (64, 4067710), (76, 3425440), (79, 3295360), (80, 3254168), (95, 2740352), (128, 2033855), (152, 1712720), (158, 1647680), (160, 1627084), (190, 1370176), (271, 960640), (304, 856360), (316, 823840), (320, 813542), (380, 685088), (395, 659072), (542, 480320), (608, 428180), (632, 411920), (640, 406771), (760, 342544), (790, 329536), (1084, 240160), (1216, 214090), (1264, 205960), (1355, 192128), (1501, 173440), (1520, 171272), (1580, 164768), (2168, 120080), (2432, 107045), (2528, 102980), (2710, 96064), (3002, 86720), (3040, 85636), (3160, 82384), (4336, 60040), (5056, 51490), (5149, 50560), (5420, 48032), (6004, 43360), (6080, 42818), (6320, 41192), (7505, 34688), (8672, 30020), (10112, 25745), (10298, 25280), (10840, 24016), (12008, 21680), (12160, 21409), (12640, 20596), (15010, 17344)]