21000570640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{5477}}^1$

素因数の和:5705

約数の個数: 160

約数和(自身を含む): 57515318784

約数和(自身を除く): 36514748144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 167, 205, 280, 287, 328, 334, 410, 560, 574, 656, 668, 820, 835, 1148, 1169, 1336, 1435, 1640, 1670, 2296, 2338, 2672, 2870, 3280, 3340, 4592, 4676, 5477, 5740, 5845, 6680, 6847, 9352, 10954, 11480, 11690, 13360, 13694, 18704, 21908, 22960, 23380, 27385, 27388, 34235, 38339, 43816, 46760, 47929, 54770, 54776, 68470, 76678, 87632, 93520, 95858, 109540, 109552, 136940, 153356, 191695, 191716, 219080, 224557, 239645, 273880, 306712, 383390, 383432, 438160, 449114, 479290, 547760, 613424, 766780, 766864, 898228, 914659, 958580, 1122785, 1533560, 1571899, 1796456, 1829318, 1917160, 2245570, 3067120, 3143798, 3592912, 3658636, 3834320, 4491140, 4573295, 6287596, 6402613, 7317272, 7859495, 8982280, 9146590, 12575192, 12805226, 14634544, 15718990, 17964560, 18293180, 25150384, 25610452, 31437980, 32013065, 36586360, 37501019, 51220904, 62875960, 64026130, 73172720, 75002038, 102441808, 125751920, 128052260, 150004076, 187505095, 256104520, 262507133, 300008152, 375010190, 512209040, 525014266, 600016304, 750020380, 1050028532, 1312535665, 1500040760, 2100057064, 2625071330, 3000081520, 4200114128, 5250142660, 10500285320, 21000570640]

約数ペア:

[(1, 21000570640), (2, 10500285320), (4, 5250142660), (5, 4200114128), (7, 3000081520), (8, 2625071330), (10, 2100057064), (14, 1500040760), (16, 1312535665), (20, 1050028532), (28, 750020380), (35, 600016304), (40, 525014266), (41, 512209040), (56, 375010190), (70, 300008152), (80, 262507133), (82, 256104520), (112, 187505095), (140, 150004076), (164, 128052260), (167, 125751920), (205, 102441808), (280, 75002038), (287, 73172720), (328, 64026130), (334, 62875960), (410, 51220904), (560, 37501019), (574, 36586360), (656, 32013065), (668, 31437980), (820, 25610452), (835, 25150384), (1148, 18293180), (1169, 17964560), (1336, 15718990), (1435, 14634544), (1640, 12805226), (1670, 12575192), (2296, 9146590), (2338, 8982280), (2672, 7859495), (2870, 7317272), (3280, 6402613), (3340, 6287596), (4592, 4573295), (4676, 4491140), (5477, 3834320), (5740, 3658636), (5845, 3592912), (6680, 3143798), (6847, 3067120), (9352, 2245570), (10954, 1917160), (11480, 1829318), (11690, 1796456), (13360, 1571899), (13694, 1533560), (18704, 1122785), (21908, 958580), (22960, 914659), (23380, 898228), (27385, 766864), (27388, 766780), (34235, 613424), (38339, 547760), (43816, 479290), (46760, 449114), (47929, 438160), (54770, 383432), (54776, 383390), (68470, 306712), (76678, 273880), (87632, 239645), (93520, 224557), (95858, 219080), (109540, 191716), (109552, 191695), (136940, 153356)]