1981994238

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:460

約数の個数: 192

約数和(自身を含む): 5377443840

約数和(自身を除く): 3395449602

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 31, 42, 49, 54, 62, 63, 73, 93, 98, 126, 146, 147, 186, 189, 217, 219, 279, 294, 331, 378, 434, 438, 441, 511, 558, 651, 657, 662, 837, 882, 993, 1022, 1302, 1314, 1323, 1519, 1533, 1674, 1953, 1971, 1986, 2263, 2317, 2646, 2979, 3038, 3066, 3577, 3906, 3942, 4526, 4557, 4599, 4634, 5859, 5958, 6789, 6951, 7154, 8937, 9114, 9198, 10261, 10731, 11718, 13578, 13671, 13797, 13902, 15841, 16219, 17874, 20367, 20522, 20853, 21462, 24163, 27342, 27594, 30783, 31682, 32193, 32438, 40734, 41013, 41706, 47523, 48326, 48657, 61101, 61566, 62559, 64386, 71827, 72489, 82026, 92349, 95046, 96579, 97314, 110887, 122202, 125118, 142569, 143654, 144978, 145971, 169141, 184698, 193158, 215481, 217467, 221774, 277047, 285138, 291942, 332661, 338282, 427707, 430962, 434934, 437913, 502789, 507423, 554094, 646443, 652401, 665322, 749053, 855414, 875826, 997983, 1005578, 1014846, 1183987, 1292886, 1304802, 1498106, 1508367, 1522269, 1939329, 1995966, 2247159, 2367974, 2993949, 3016734, 3044538, 3551961, 3878658, 4494318, 4525101, 4566807, 5243371, 5987898, 6741477, 7103922, 9050202, 9133614, 10486742, 10655883, 13482954, 13575303, 15730113, 20224431, 21311766, 27150606, 31460226, 31967649, 36703597, 40448862, 47190339, 63935298, 73407194, 94380678, 110110791, 141571017, 220221582, 283142034, 330332373, 660664746, 990997119, 1981994238]

約数ペア:

[(1, 1981994238), (2, 990997119), (3, 660664746), (6, 330332373), (7, 283142034), (9, 220221582), (14, 141571017), (18, 110110791), (21, 94380678), (27, 73407194), (31, 63935298), (42, 47190339), (49, 40448862), (54, 36703597), (62, 31967649), (63, 31460226), (73, 27150606), (93, 21311766), (98, 20224431), (126, 15730113), (146, 13575303), (147, 13482954), (186, 10655883), (189, 10486742), (217, 9133614), (219, 9050202), (279, 7103922), (294, 6741477), (331, 5987898), (378, 5243371), (434, 4566807), (438, 4525101), (441, 4494318), (511, 3878658), (558, 3551961), (651, 3044538), (657, 3016734), (662, 2993949), (837, 2367974), (882, 2247159), (993, 1995966), (1022, 1939329), (1302, 1522269), (1314, 1508367), (1323, 1498106), (1519, 1304802), (1533, 1292886), (1674, 1183987), (1953, 1014846), (1971, 1005578), (1986, 997983), (2263, 875826), (2317, 855414), (2646, 749053), (2979, 665322), (3038, 652401), (3066, 646443), (3577, 554094), (3906, 507423), (3942, 502789), (4526, 437913), (4557, 434934), (4599, 430962), (4634, 427707), (5859, 338282), (5958, 332661), (6789, 291942), (6951, 285138), (7154, 277047), (8937, 221774), (9114, 217467), (9198, 215481), (10261, 193158), (10731, 184698), (11718, 169141), (13578, 145971), (13671, 144978), (13797, 143654), (13902, 142569), (15841, 125118), (16219, 122202), (17874, 110887), (20367, 97314), (20522, 96579), (20853, 95046), (21462, 92349), (24163, 82026), (27342, 72489), (27594, 71827), (30783, 64386), (31682, 62559), (32193, 61566), (32438, 61101), (40734, 48657), (41013, 48326), (41706, 47523)]