21209041520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{2473}}^1$

素因数の和:2647

約数の個数: 160

約数和(自身を含む): 53010892800

約数和(自身を除く): 31801851280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 59, 79, 80, 92, 115, 118, 158, 184, 230, 236, 295, 316, 368, 395, 460, 472, 590, 632, 790, 920, 944, 1180, 1264, 1357, 1580, 1817, 1840, 2360, 2473, 2714, 3160, 3634, 4661, 4720, 4946, 5428, 6320, 6785, 7268, 9085, 9322, 9892, 10856, 12365, 13570, 14536, 18170, 18644, 19784, 21712, 23305, 24730, 27140, 29072, 36340, 37288, 39568, 46610, 49460, 54280, 56879, 72680, 74576, 93220, 98920, 107203, 108560, 113758, 145360, 145907, 186440, 195367, 197840, 214406, 227516, 284395, 291814, 372880, 390734, 428812, 455032, 536015, 568790, 583628, 729535, 781468, 857624, 910064, 976835, 1072030, 1137580, 1167256, 1459070, 1562936, 1715248, 1953670, 2144060, 2275160, 2334512, 2918140, 3125872, 3355861, 3907340, 4288120, 4493441, 4550320, 5836280, 6711722, 7814680, 8576240, 8986882, 11526653, 11672560, 13423444, 15629360, 16779305, 17973764, 22467205, 23053306, 26846888, 33558610, 35947528, 44934410, 46106612, 53693776, 57633265, 67117220, 71895056, 89868820, 92213224, 115266530, 134234440, 179737640, 184426448, 230533060, 265113019, 268468880, 359475280, 461066120, 530226038, 922132240, 1060452076, 1325565095, 2120904152, 2651130190, 4241808304, 5302260380, 10604520760, 21209041520]

約数ペア:

[(1, 21209041520), (2, 10604520760), (4, 5302260380), (5, 4241808304), (8, 2651130190), (10, 2120904152), (16, 1325565095), (20, 1060452076), (23, 922132240), (40, 530226038), (46, 461066120), (59, 359475280), (79, 268468880), (80, 265113019), (92, 230533060), (115, 184426448), (118, 179737640), (158, 134234440), (184, 115266530), (230, 92213224), (236, 89868820), (295, 71895056), (316, 67117220), (368, 57633265), (395, 53693776), (460, 46106612), (472, 44934410), (590, 35947528), (632, 33558610), (790, 26846888), (920, 23053306), (944, 22467205), (1180, 17973764), (1264, 16779305), (1357, 15629360), (1580, 13423444), (1817, 11672560), (1840, 11526653), (2360, 8986882), (2473, 8576240), (2714, 7814680), (3160, 6711722), (3634, 5836280), (4661, 4550320), (4720, 4493441), (4946, 4288120), (5428, 3907340), (6320, 3355861), (6785, 3125872), (7268, 2918140), (9085, 2334512), (9322, 2275160), (9892, 2144060), (10856, 1953670), (12365, 1715248), (13570, 1562936), (14536, 1459070), (18170, 1167256), (18644, 1137580), (19784, 1072030), (21712, 976835), (23305, 910064), (24730, 857624), (27140, 781468), (29072, 729535), (36340, 583628), (37288, 568790), (39568, 536015), (46610, 455032), (49460, 428812), (54280, 390734), (56879, 372880), (72680, 291814), (74576, 284395), (93220, 227516), (98920, 214406), (107203, 197840), (108560, 195367), (113758, 186440), (145360, 145907)]