20185501440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{404357}}^1$

素因数の和:404394

約数の個数: 144

約数和(自身を含む): 69426651168

約数和(自身を除く): 49241149728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1560, 1664, 1920, 2080, 2496, 3120, 3328, 3840, 4160, 4992, 6240, 8320, 9984, 12480, 16640, 24960, 49920, 404357, 808714, 1213071, 1617428, 2021785, 2426142, 3234856, 4043570, 4852284, 5256641, 6065355, 6469712, 8087140, 9704568, 10513282, 12130710, 12939424, 15769923, 16174280, 19409136, 21026564, 24261420, 25878848, 26283205, 31539846, 32348560, 38818272, 42053128, 48522840, 51757696, 52566410, 63079692, 64697120, 77636544, 78849615, 84106256, 97045680, 103515392, 105132820, 126159384, 129394240, 155273088, 157699230, 168212512, 194091360, 210265640, 252318768, 258788480, 310546176, 315398460, 336425024, 388182720, 420531280, 504637536, 517576960, 630796920, 672850048, 776365440, 841062560, 1009275072, 1261593840, 1345700096, 1552730880, 1682125120, 2018550144, 2523187680, 3364250240, 4037100288, 5046375360, 6728500480, 10092750720, 20185501440]

約数ペア:

[(1, 20185501440), (2, 10092750720), (3, 6728500480), (4, 5046375360), (5, 4037100288), (6, 3364250240), (8, 2523187680), (10, 2018550144), (12, 1682125120), (13, 1552730880), (15, 1345700096), (16, 1261593840), (20, 1009275072), (24, 841062560), (26, 776365440), (30, 672850048), (32, 630796920), (39, 517576960), (40, 504637536), (48, 420531280), (52, 388182720), (60, 336425024), (64, 315398460), (65, 310546176), (78, 258788480), (80, 252318768), (96, 210265640), (104, 194091360), (120, 168212512), (128, 157699230), (130, 155273088), (156, 129394240), (160, 126159384), (192, 105132820), (195, 103515392), (208, 97045680), (240, 84106256), (256, 78849615), (260, 77636544), (312, 64697120), (320, 63079692), (384, 52566410), (390, 51757696), (416, 48522840), (480, 42053128), (520, 38818272), (624, 32348560), (640, 31539846), (768, 26283205), (780, 25878848), (832, 24261420), (960, 21026564), (1040, 19409136), (1248, 16174280), (1280, 15769923), (1560, 12939424), (1664, 12130710), (1920, 10513282), (2080, 9704568), (2496, 8087140), (3120, 6469712), (3328, 6065355), (3840, 5256641), (4160, 4852284), (4992, 4043570), (6240, 3234856), (8320, 2426142), (9984, 2021785), (12480, 1617428), (16640, 1213071), (24960, 808714), (49920, 404357)]