2021145140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 216

約数和(自身を含む): 5417957160

約数和(自身を除く): 3396812020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 29, 35, 38, 49, 58, 70, 76, 95, 98, 116, 133, 140, 145, 190, 196, 197, 203, 245, 266, 290, 361, 380, 394, 406, 490, 532, 551, 580, 665, 722, 788, 812, 931, 980, 985, 1015, 1102, 1330, 1379, 1421, 1444, 1805, 1862, 1970, 2030, 2204, 2527, 2660, 2755, 2758, 2842, 3610, 3724, 3743, 3857, 3940, 4060, 4655, 5054, 5510, 5516, 5684, 5713, 6895, 7105, 7220, 7486, 7714, 9310, 9653, 10108, 10469, 11020, 11426, 12635, 13790, 14210, 14972, 15428, 17689, 18620, 18715, 19285, 19306, 20938, 22852, 25270, 26201, 26999, 27580, 28420, 28565, 35378, 37430, 38570, 38612, 39991, 41876, 48265, 50540, 52345, 52402, 53998, 57130, 70756, 71117, 73283, 74860, 77140, 79982, 88445, 96530, 104690, 104804, 107996, 108547, 114260, 131005, 134995, 142234, 146566, 159964, 176890, 183407, 193060, 199955, 209380, 217094, 262010, 269990, 279937, 284468, 293132, 353780, 355585, 366415, 366814, 399910, 434188, 497819, 512981, 524020, 539980, 542735, 559874, 711170, 732830, 733628, 759829, 799820, 917035, 995638, 1025962, 1085470, 1119748, 1399685, 1422340, 1465660, 1519658, 1834070, 1991276, 2051924, 2062393, 2170940, 2489095, 2564905, 2799370, 3039316, 3484733, 3668140, 3799145, 4124786, 4978190, 5129810, 5318803, 5598740, 6969466, 7598290, 8249572, 9956380, 10259620, 10311965, 10637606, 13938932, 14436751, 15196580, 17423665, 20623930, 21275212, 26594015, 28873502, 34847330, 41247860, 53188030, 57747004, 69694660, 72183755, 101057257, 106376060, 144367510, 202114514, 288735020, 404229028, 505286285, 1010572570, 2021145140]

約数ペア:

[(1, 2021145140), (2, 1010572570), (4, 505286285), (5, 404229028), (7, 288735020), (10, 202114514), (14, 144367510), (19, 106376060), (20, 101057257), (28, 72183755), (29, 69694660), (35, 57747004), (38, 53188030), (49, 41247860), (58, 34847330), (70, 28873502), (76, 26594015), (95, 21275212), (98, 20623930), (116, 17423665), (133, 15196580), (140, 14436751), (145, 13938932), (190, 10637606), (196, 10311965), (197, 10259620), (203, 9956380), (245, 8249572), (266, 7598290), (290, 6969466), (361, 5598740), (380, 5318803), (394, 5129810), (406, 4978190), (490, 4124786), (532, 3799145), (551, 3668140), (580, 3484733), (665, 3039316), (722, 2799370), (788, 2564905), (812, 2489095), (931, 2170940), (980, 2062393), (985, 2051924), (1015, 1991276), (1102, 1834070), (1330, 1519658), (1379, 1465660), (1421, 1422340), (1444, 1399685), (1805, 1119748), (1862, 1085470), (1970, 1025962), (2030, 995638), (2204, 917035), (2527, 799820), (2660, 759829), (2755, 733628), (2758, 732830), (2842, 711170), (3610, 559874), (3724, 542735), (3743, 539980), (3857, 524020), (3940, 512981), (4060, 497819), (4655, 434188), (5054, 399910), (5510, 366814), (5516, 366415), (5684, 355585), (5713, 353780), (6895, 293132), (7105, 284468), (7220, 279937), (7486, 269990), (7714, 262010), (9310, 217094), (9653, 209380), (10108, 199955), (10469, 193060), (11020, 183407), (11426, 176890), (12635, 159964), (13790, 146566), (14210, 142234), (14972, 134995), (15428, 131005), (17689, 114260), (18620, 108547), (18715, 107996), (19285, 104804), (19306, 104690), (20938, 96530), (22852, 88445), (25270, 79982), (26201, 77140), (26999, 74860), (27580, 73283), (28420, 71117), (28565, 70756), (35378, 57130), (37430, 53998), (38570, 52402), (38612, 52345), (39991, 50540), (41876, 48265)]