20216836780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:680

約数の個数: 192

約数和(自身を含む): 50965770240

約数和(自身を除く): 30748933460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 71, 82, 113, 140, 142, 164, 205, 226, 284, 287, 355, 410, 439, 452, 497, 565, 574, 710, 791, 820, 878, 994, 1130, 1148, 1420, 1435, 1582, 1756, 1988, 2195, 2260, 2485, 2870, 2911, 3073, 3164, 3955, 4390, 4633, 4970, 5740, 5822, 6146, 7910, 8023, 8780, 9266, 9940, 11644, 12292, 14555, 15365, 15820, 16046, 17999, 18532, 20377, 23165, 29110, 30730, 31169, 32092, 32431, 35998, 40115, 40754, 46330, 49607, 56161, 58220, 61460, 62338, 64862, 71996, 80230, 81508, 89995, 92660, 99214, 101885, 112322, 124676, 125993, 129724, 155845, 160460, 162155, 179990, 198428, 203770, 218183, 224644, 248035, 251986, 280805, 311690, 324310, 328943, 347249, 359980, 407540, 436366, 496070, 503972, 561610, 623380, 629965, 648620, 657886, 694498, 872732, 992140, 1090915, 1123220, 1259930, 1277929, 1315772, 1388996, 1644715, 1736245, 2033887, 2181830, 2302601, 2519860, 2555858, 3289430, 3472490, 3522097, 4067774, 4363660, 4605202, 5111716, 6389645, 6578860, 6944980, 7044194, 8135548, 8945503, 9210404, 10169435, 11513005, 12779290, 14088388, 14237209, 17610485, 17891006, 20338870, 23026010, 24654679, 25558580, 28474418, 35220970, 35782012, 40677740, 44727515, 46052020, 49309358, 56948836, 70441940, 71186045, 89455030, 98618716, 123273395, 142372090, 144405977, 178910060, 246546790, 284744180, 288811954, 493093580, 577623908, 722029885, 1010841839, 1444059770, 2021683678, 2888119540, 4043367356, 5054209195, 10108418390, 20216836780]

約数ペア:

[(1, 20216836780), (2, 10108418390), (4, 5054209195), (5, 4043367356), (7, 2888119540), (10, 2021683678), (14, 1444059770), (20, 1010841839), (28, 722029885), (35, 577623908), (41, 493093580), (70, 288811954), (71, 284744180), (82, 246546790), (113, 178910060), (140, 144405977), (142, 142372090), (164, 123273395), (205, 98618716), (226, 89455030), (284, 71186045), (287, 70441940), (355, 56948836), (410, 49309358), (439, 46052020), (452, 44727515), (497, 40677740), (565, 35782012), (574, 35220970), (710, 28474418), (791, 25558580), (820, 24654679), (878, 23026010), (994, 20338870), (1130, 17891006), (1148, 17610485), (1420, 14237209), (1435, 14088388), (1582, 12779290), (1756, 11513005), (1988, 10169435), (2195, 9210404), (2260, 8945503), (2485, 8135548), (2870, 7044194), (2911, 6944980), (3073, 6578860), (3164, 6389645), (3955, 5111716), (4390, 4605202), (4633, 4363660), (4970, 4067774), (5740, 3522097), (5822, 3472490), (6146, 3289430), (7910, 2555858), (8023, 2519860), (8780, 2302601), (9266, 2181830), (9940, 2033887), (11644, 1736245), (12292, 1644715), (14555, 1388996), (15365, 1315772), (15820, 1277929), (16046, 1259930), (17999, 1123220), (18532, 1090915), (20377, 992140), (23165, 872732), (29110, 694498), (30730, 657886), (31169, 648620), (32092, 629965), (32431, 623380), (35998, 561610), (40115, 503972), (40754, 496070), (46330, 436366), (49607, 407540), (56161, 359980), (58220, 347249), (61460, 328943), (62338, 324310), (64862, 311690), (71996, 280805), (80230, 251986), (81508, 248035), (89995, 224644), (92660, 218183), (99214, 203770), (101885, 198428), (112322, 179990), (124676, 162155), (125993, 160460), (129724, 155845)]