19808640

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:225

約数の個数: 192

約数和(自身を含む): 72399600

約数和(自身を除く): 52590960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 181, 190, 192, 228, 240, 285, 288, 304, 320, 342, 360, 362, 380, 384, 456, 480, 543, 570, 576, 608, 640, 684, 720, 724, 760, 855, 905, 912, 960, 1086, 1140, 1152, 1216, 1368, 1440, 1448, 1520, 1629, 1710, 1810, 1824, 1920, 2172, 2280, 2432, 2715, 2736, 2880, 2896, 3040, 3258, 3420, 3439, 3620, 3648, 4344, 4560, 5430, 5472, 5760, 5792, 6080, 6516, 6840, 6878, 7240, 7296, 8145, 8688, 9120, 10317, 10860, 10944, 11584, 12160, 13032, 13680, 13756, 14480, 16290, 17195, 17376, 18240, 20634, 21720, 21888, 23168, 26064, 27360, 27512, 28960, 30951, 32580, 34390, 34752, 36480, 41268, 43440, 51585, 52128, 54720, 55024, 57920, 61902, 65160, 68780, 69504, 82536, 86880, 103170, 104256, 109440, 110048, 115840, 123804, 130320, 137560, 154755, 165072, 173760, 206340, 208512, 220096, 247608, 260640, 275120, 309510, 330144, 347520, 412680, 440192, 495216, 521280, 550240, 619020, 660288, 825360, 990432, 1042560, 1100480, 1238040, 1320576, 1650720, 1980864, 2200960, 2476080, 3301440, 3961728, 4952160, 6602880, 9904320, 19808640]

約数ペア:

[(1, 19808640), (2, 9904320), (3, 6602880), (4, 4952160), (5, 3961728), (6, 3301440), (8, 2476080), (9, 2200960), (10, 1980864), (12, 1650720), (15, 1320576), (16, 1238040), (18, 1100480), (19, 1042560), (20, 990432), (24, 825360), (30, 660288), (32, 619020), (36, 550240), (38, 521280), (40, 495216), (45, 440192), (48, 412680), (57, 347520), (60, 330144), (64, 309510), (72, 275120), (76, 260640), (80, 247608), (90, 220096), (95, 208512), (96, 206340), (114, 173760), (120, 165072), (128, 154755), (144, 137560), (152, 130320), (160, 123804), (171, 115840), (180, 110048), (181, 109440), (190, 104256), (192, 103170), (228, 86880), (240, 82536), (285, 69504), (288, 68780), (304, 65160), (320, 61902), (342, 57920), (360, 55024), (362, 54720), (380, 52128), (384, 51585), (456, 43440), (480, 41268), (543, 36480), (570, 34752), (576, 34390), (608, 32580), (640, 30951), (684, 28960), (720, 27512), (724, 27360), (760, 26064), (855, 23168), (905, 21888), (912, 21720), (960, 20634), (1086, 18240), (1140, 17376), (1152, 17195), (1216, 16290), (1368, 14480), (1440, 13756), (1448, 13680), (1520, 13032), (1629, 12160), (1710, 11584), (1810, 10944), (1824, 10860), (1920, 10317), (2172, 9120), (2280, 8688), (2432, 8145), (2715, 7296), (2736, 7240), (2880, 6878), (2896, 6840), (3040, 6516), (3258, 6080), (3420, 5792), (3439, 5760), (3620, 5472), (3648, 5430), (4344, 4560)]