19805760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2$

素因数の和:82

約数の個数: 252

約数和(自身を含む): 76692252

約数和(自身を除く): 56886492

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 23, 24, 26, 30, 32, 36, 39, 40, 45, 46, 48, 52, 60, 64, 65, 69, 72, 78, 80, 90, 92, 96, 104, 115, 117, 120, 130, 138, 144, 156, 160, 180, 184, 192, 195, 207, 208, 230, 234, 240, 260, 276, 288, 299, 312, 320, 345, 360, 368, 390, 414, 416, 460, 468, 480, 520, 529, 552, 576, 585, 598, 624, 690, 720, 736, 780, 828, 832, 897, 920, 936, 960, 1035, 1040, 1058, 1104, 1170, 1196, 1248, 1380, 1440, 1472, 1495, 1560, 1587, 1656, 1794, 1840, 1872, 2070, 2080, 2116, 2208, 2340, 2392, 2496, 2645, 2691, 2760, 2880, 2990, 3120, 3174, 3312, 3588, 3680, 3744, 4140, 4160, 4232, 4416, 4485, 4680, 4761, 4784, 5290, 5382, 5520, 5980, 6240, 6348, 6624, 6877, 7176, 7360, 7488, 7935, 8280, 8464, 8970, 9360, 9522, 9568, 10580, 10764, 11040, 11960, 12480, 12696, 13248, 13455, 13754, 14352, 15870, 16560, 16928, 17940, 18720, 19044, 19136, 20631, 21160, 21528, 22080, 23805, 23920, 25392, 26910, 27508, 28704, 31740, 33120, 33856, 34385, 35880, 37440, 38088, 41262, 42320, 43056, 47610, 47840, 50784, 53820, 55016, 57408, 61893, 63480, 66240, 68770, 71760, 76176, 82524, 84640, 86112, 95220, 95680, 101568, 103155, 107640, 110032, 123786, 126960, 137540, 143520, 152352, 165048, 169280, 172224, 190440, 206310, 215280, 220064, 247572, 253920, 275080, 287040, 304704, 309465, 330096, 380880, 412620, 430560, 440128, 495144, 507840, 550160, 618930, 660192, 761760, 825240, 861120, 990288, 1100320, 1237860, 1320384, 1523520, 1650480, 1980576, 2200640, 2475720, 3300960, 3961152, 4951440, 6601920, 9902880, 19805760]

約数ペア:

[(1, 19805760), (2, 9902880), (3, 6601920), (4, 4951440), (5, 3961152), (6, 3300960), (8, 2475720), (9, 2200640), (10, 1980576), (12, 1650480), (13, 1523520), (15, 1320384), (16, 1237860), (18, 1100320), (20, 990288), (23, 861120), (24, 825240), (26, 761760), (30, 660192), (32, 618930), (36, 550160), (39, 507840), (40, 495144), (45, 440128), (46, 430560), (48, 412620), (52, 380880), (60, 330096), (64, 309465), (65, 304704), (69, 287040), (72, 275080), (78, 253920), (80, 247572), (90, 220064), (92, 215280), (96, 206310), (104, 190440), (115, 172224), (117, 169280), (120, 165048), (130, 152352), (138, 143520), (144, 137540), (156, 126960), (160, 123786), (180, 110032), (184, 107640), (192, 103155), (195, 101568), (207, 95680), (208, 95220), (230, 86112), (234, 84640), (240, 82524), (260, 76176), (276, 71760), (288, 68770), (299, 66240), (312, 63480), (320, 61893), (345, 57408), (360, 55016), (368, 53820), (390, 50784), (414, 47840), (416, 47610), (460, 43056), (468, 42320), (480, 41262), (520, 38088), (529, 37440), (552, 35880), (576, 34385), (585, 33856), (598, 33120), (624, 31740), (690, 28704), (720, 27508), (736, 26910), (780, 25392), (828, 23920), (832, 23805), (897, 22080), (920, 21528), (936, 21160), (960, 20631), (1035, 19136), (1040, 19044), (1058, 18720), (1104, 17940), (1170, 16928), (1196, 16560), (1248, 15870), (1380, 14352), (1440, 13754), (1472, 13455), (1495, 13248), (1560, 12696), (1587, 12480), (1656, 11960), (1794, 11040), (1840, 10764), (1872, 10580), (2070, 9568), (2080, 9522), (2116, 9360), (2208, 8970), (2340, 8464), (2392, 8280), (2496, 7935), (2645, 7488), (2691, 7360), (2760, 7176), (2880, 6877), (2990, 6624), (3120, 6348), (3174, 6240), (3312, 5980), (3588, 5520), (3680, 5382), (3744, 5290), (4140, 4784), (4160, 4761), (4232, 4680), (4416, 4485)]