80661840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^3$

素因数の和:87

約数の個数: 240

約数和(自身を含む): 307033920

約数和(自身を除く): 226372080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 49, 56, 57, 60, 70, 76, 80, 84, 95, 98, 105, 112, 114, 120, 133, 140, 147, 152, 168, 190, 196, 210, 228, 240, 245, 266, 280, 285, 294, 304, 336, 361, 380, 392, 399, 420, 456, 490, 532, 560, 570, 588, 665, 722, 735, 760, 784, 798, 840, 912, 931, 980, 1064, 1083, 1140, 1176, 1330, 1444, 1470, 1520, 1596, 1680, 1805, 1862, 1960, 1995, 2128, 2166, 2280, 2352, 2527, 2660, 2793, 2888, 2940, 3192, 3610, 3724, 3920, 3990, 4332, 4560, 4655, 5054, 5320, 5415, 5586, 5776, 5880, 6384, 6859, 7220, 7448, 7581, 7980, 8664, 9310, 10108, 10640, 10830, 11172, 11760, 12635, 13718, 13965, 14440, 14896, 15162, 15960, 17328, 17689, 18620, 20216, 20577, 21660, 22344, 25270, 27436, 27930, 28880, 30324, 31920, 34295, 35378, 37240, 37905, 40432, 41154, 43320, 44688, 48013, 50540, 53067, 54872, 55860, 60648, 68590, 70756, 74480, 75810, 82308, 86640, 88445, 96026, 101080, 102885, 106134, 109744, 111720, 121296, 137180, 141512, 144039, 151620, 164616, 176890, 192052, 202160, 205770, 212268, 223440, 240065, 265335, 274360, 283024, 288078, 303240, 329232, 336091, 353780, 384104, 411540, 424536, 480130, 530670, 548720, 576156, 606480, 672182, 707560, 720195, 768208, 823080, 849072, 960260, 1008273, 1061340, 1152312, 1344364, 1415120, 1440390, 1646160, 1680455, 1920520, 2016546, 2122680, 2304624, 2688728, 2880780, 3360910, 3841040, 4033092, 4245360, 5041365, 5377456, 5761560, 6721820, 8066184, 10082730, 11523120, 13443640, 16132368, 20165460, 26887280, 40330920, 80661840]

約数ペア:

[(1, 80661840), (2, 40330920), (3, 26887280), (4, 20165460), (5, 16132368), (6, 13443640), (7, 11523120), (8, 10082730), (10, 8066184), (12, 6721820), (14, 5761560), (15, 5377456), (16, 5041365), (19, 4245360), (20, 4033092), (21, 3841040), (24, 3360910), (28, 2880780), (30, 2688728), (35, 2304624), (38, 2122680), (40, 2016546), (42, 1920520), (48, 1680455), (49, 1646160), (56, 1440390), (57, 1415120), (60, 1344364), (70, 1152312), (76, 1061340), (80, 1008273), (84, 960260), (95, 849072), (98, 823080), (105, 768208), (112, 720195), (114, 707560), (120, 672182), (133, 606480), (140, 576156), (147, 548720), (152, 530670), (168, 480130), (190, 424536), (196, 411540), (210, 384104), (228, 353780), (240, 336091), (245, 329232), (266, 303240), (280, 288078), (285, 283024), (294, 274360), (304, 265335), (336, 240065), (361, 223440), (380, 212268), (392, 205770), (399, 202160), (420, 192052), (456, 176890), (490, 164616), (532, 151620), (560, 144039), (570, 141512), (588, 137180), (665, 121296), (722, 111720), (735, 109744), (760, 106134), (784, 102885), (798, 101080), (840, 96026), (912, 88445), (931, 86640), (980, 82308), (1064, 75810), (1083, 74480), (1140, 70756), (1176, 68590), (1330, 60648), (1444, 55860), (1470, 54872), (1520, 53067), (1596, 50540), (1680, 48013), (1805, 44688), (1862, 43320), (1960, 41154), (1995, 40432), (2128, 37905), (2166, 37240), (2280, 35378), (2352, 34295), (2527, 31920), (2660, 30324), (2793, 28880), (2888, 27930), (2940, 27436), (3192, 25270), (3610, 22344), (3724, 21660), (3920, 20577), (3990, 20216), (4332, 18620), (4560, 17689), (4655, 17328), (5054, 15960), (5320, 15162), (5415, 14896), (5586, 14440), (5776, 13965), (5880, 13718), (6384, 12635), (6859, 11760), (7220, 11172), (7448, 10830), (7581, 10640), (7980, 10108), (8664, 9310)]