781234560

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5897}}^1$

素因数の和:5945

約数の個数: 192

約数和(自身を含む): 2815469280

約数和(自身を除く): 2034234720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 64, 69, 72, 80, 90, 92, 96, 115, 120, 128, 138, 144, 160, 180, 184, 192, 207, 230, 240, 276, 288, 320, 345, 360, 368, 384, 414, 460, 480, 552, 576, 640, 690, 720, 736, 828, 920, 960, 1035, 1104, 1152, 1380, 1440, 1472, 1656, 1840, 1920, 2070, 2208, 2760, 2880, 2944, 3312, 3680, 4140, 4416, 5520, 5760, 5897, 6624, 7360, 8280, 8832, 11040, 11794, 13248, 14720, 16560, 17691, 22080, 23588, 26496, 29485, 33120, 35382, 44160, 47176, 53073, 58970, 66240, 70764, 88455, 94352, 106146, 117940, 132480, 135631, 141528, 176910, 188704, 212292, 235880, 265365, 271262, 283056, 353820, 377408, 406893, 424584, 471760, 530730, 542524, 566112, 678155, 707640, 754816, 813786, 849168, 943520, 1061460, 1085048, 1132224, 1220679, 1356310, 1415280, 1627572, 1698336, 1887040, 2034465, 2122920, 2170096, 2264448, 2441358, 2712620, 2830560, 3255144, 3396672, 3774080, 4068930, 4245840, 4340192, 4882716, 5425240, 5661120, 6103395, 6510288, 6793344, 8137860, 8491680, 8680384, 9765432, 10850480, 11322240, 12206790, 13020576, 16275720, 16983360, 17360768, 19530864, 21700960, 24413580, 26041152, 32551440, 33966720, 39061728, 43401920, 48827160, 52082304, 65102880, 78123456, 86803840, 97654320, 130205760, 156246912, 195308640, 260411520, 390617280, 781234560]

約数ペア:

[(1, 781234560), (2, 390617280), (3, 260411520), (4, 195308640), (5, 156246912), (6, 130205760), (8, 97654320), (9, 86803840), (10, 78123456), (12, 65102880), (15, 52082304), (16, 48827160), (18, 43401920), (20, 39061728), (23, 33966720), (24, 32551440), (30, 26041152), (32, 24413580), (36, 21700960), (40, 19530864), (45, 17360768), (46, 16983360), (48, 16275720), (60, 13020576), (64, 12206790), (69, 11322240), (72, 10850480), (80, 9765432), (90, 8680384), (92, 8491680), (96, 8137860), (115, 6793344), (120, 6510288), (128, 6103395), (138, 5661120), (144, 5425240), (160, 4882716), (180, 4340192), (184, 4245840), (192, 4068930), (207, 3774080), (230, 3396672), (240, 3255144), (276, 2830560), (288, 2712620), (320, 2441358), (345, 2264448), (360, 2170096), (368, 2122920), (384, 2034465), (414, 1887040), (460, 1698336), (480, 1627572), (552, 1415280), (576, 1356310), (640, 1220679), (690, 1132224), (720, 1085048), (736, 1061460), (828, 943520), (920, 849168), (960, 813786), (1035, 754816), (1104, 707640), (1152, 678155), (1380, 566112), (1440, 542524), (1472, 530730), (1656, 471760), (1840, 424584), (1920, 406893), (2070, 377408), (2208, 353820), (2760, 283056), (2880, 271262), (2944, 265365), (3312, 235880), (3680, 212292), (4140, 188704), (4416, 176910), (5520, 141528), (5760, 135631), (5897, 132480), (6624, 117940), (7360, 106146), (8280, 94352), (8832, 88455), (11040, 70764), (11794, 66240), (13248, 58970), (14720, 53073), (16560, 47176), (17691, 44160), (22080, 35382), (23588, 33120), (26496, 29485)]