19419840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1$

素因数の和:647

約数の個数: 168

約数和(自身を含む): 72987408

約数和(自身を除く): 53567568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 352, 360, 396, 440, 480, 495, 528, 576, 613, 660, 704, 720, 792, 880, 960, 990, 1056, 1226, 1320, 1440, 1584, 1760, 1839, 1980, 2112, 2452, 2640, 2880, 3065, 3168, 3520, 3678, 3960, 4904, 5280, 5517, 6130, 6336, 6743, 7356, 7920, 9195, 9808, 10560, 11034, 12260, 13486, 14712, 15840, 18390, 19616, 20229, 22068, 24520, 26972, 27585, 29424, 31680, 33715, 36780, 39232, 40458, 44136, 49040, 53944, 55170, 58848, 60687, 67430, 73560, 80916, 88272, 98080, 101145, 107888, 110340, 117696, 121374, 134860, 147120, 161832, 176544, 196160, 202290, 215776, 220680, 242748, 269720, 294240, 303435, 323664, 353088, 404580, 431552, 441360, 485496, 539440, 588480, 606870, 647328, 809160, 882720, 970992, 1078880, 1213740, 1294656, 1618320, 1765440, 1941984, 2157760, 2427480, 3236640, 3883968, 4854960, 6473280, 9709920, 19419840]

約数ペア:

[(1, 19419840), (2, 9709920), (3, 6473280), (4, 4854960), (5, 3883968), (6, 3236640), (8, 2427480), (9, 2157760), (10, 1941984), (11, 1765440), (12, 1618320), (15, 1294656), (16, 1213740), (18, 1078880), (20, 970992), (22, 882720), (24, 809160), (30, 647328), (32, 606870), (33, 588480), (36, 539440), (40, 485496), (44, 441360), (45, 431552), (48, 404580), (55, 353088), (60, 323664), (64, 303435), (66, 294240), (72, 269720), (80, 242748), (88, 220680), (90, 215776), (96, 202290), (99, 196160), (110, 176544), (120, 161832), (132, 147120), (144, 134860), (160, 121374), (165, 117696), (176, 110340), (180, 107888), (192, 101145), (198, 98080), (220, 88272), (240, 80916), (264, 73560), (288, 67430), (320, 60687), (330, 58848), (352, 55170), (360, 53944), (396, 49040), (440, 44136), (480, 40458), (495, 39232), (528, 36780), (576, 33715), (613, 31680), (660, 29424), (704, 27585), (720, 26972), (792, 24520), (880, 22068), (960, 20229), (990, 19616), (1056, 18390), (1226, 15840), (1320, 14712), (1440, 13486), (1584, 12260), (1760, 11034), (1839, 10560), (1980, 9808), (2112, 9195), (2452, 7920), (2640, 7356), (2880, 6743), (3065, 6336), (3168, 6130), (3520, 5517), (3678, 5280), (3960, 4904)]