20565543040

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{4177}}^1$

素因数の和:4367

約数の個数: 192

約数和(自身を含む): 57569414040

約数和(自身を除く): 37003871000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 157, 160, 196, 224, 245, 280, 314, 320, 392, 448, 490, 560, 628, 640, 784, 785, 896, 980, 1099, 1120, 1256, 1568, 1570, 1960, 2198, 2240, 2512, 3136, 3140, 3920, 4177, 4396, 4480, 5024, 5495, 6272, 6280, 7693, 7840, 8354, 8792, 10048, 10990, 12560, 15386, 15680, 16708, 17584, 20096, 20885, 21980, 25120, 29239, 30772, 31360, 33416, 35168, 38465, 41770, 43960, 50240, 58478, 61544, 66832, 70336, 76930, 83540, 87920, 100480, 116956, 123088, 133664, 140672, 146195, 153860, 167080, 175840, 204673, 233912, 246176, 267328, 292390, 307720, 334160, 351680, 409346, 467824, 492352, 534656, 584780, 615440, 655789, 668320, 703360, 818692, 935648, 984704, 1023365, 1169560, 1230880, 1311578, 1336640, 1637384, 1871296, 2046730, 2339120, 2461760, 2623156, 2673280, 3274768, 3278945, 3742592, 4093460, 4590523, 4678240, 4923520, 5246312, 6549536, 6557890, 8186920, 9181046, 9356480, 10492624, 13099072, 13115780, 16373840, 18362092, 18712960, 20985248, 22952615, 26198144, 26231560, 32133661, 32747680, 36724184, 41970496, 45905230, 52463120, 64267322, 65495360, 73448368, 83940992, 91810460, 104926240, 128534644, 130990720, 146896736, 160668305, 183620920, 209852480, 257069288, 293793472, 321336610, 367241840, 419704960, 514138576, 587586944, 642673220, 734483680, 1028277152, 1285346440, 1468967360, 2056554304, 2570692880, 2937934720, 4113108608, 5141385760, 10282771520, 20565543040]

約数ペア:

[(1, 20565543040), (2, 10282771520), (4, 5141385760), (5, 4113108608), (7, 2937934720), (8, 2570692880), (10, 2056554304), (14, 1468967360), (16, 1285346440), (20, 1028277152), (28, 734483680), (32, 642673220), (35, 587586944), (40, 514138576), (49, 419704960), (56, 367241840), (64, 321336610), (70, 293793472), (80, 257069288), (98, 209852480), (112, 183620920), (128, 160668305), (140, 146896736), (157, 130990720), (160, 128534644), (196, 104926240), (224, 91810460), (245, 83940992), (280, 73448368), (314, 65495360), (320, 64267322), (392, 52463120), (448, 45905230), (490, 41970496), (560, 36724184), (628, 32747680), (640, 32133661), (784, 26231560), (785, 26198144), (896, 22952615), (980, 20985248), (1099, 18712960), (1120, 18362092), (1256, 16373840), (1568, 13115780), (1570, 13099072), (1960, 10492624), (2198, 9356480), (2240, 9181046), (2512, 8186920), (3136, 6557890), (3140, 6549536), (3920, 5246312), (4177, 4923520), (4396, 4678240), (4480, 4590523), (5024, 4093460), (5495, 3742592), (6272, 3278945), (6280, 3274768), (7693, 2673280), (7840, 2623156), (8354, 2461760), (8792, 2339120), (10048, 2046730), (10990, 1871296), (12560, 1637384), (15386, 1336640), (15680, 1311578), (16708, 1230880), (17584, 1169560), (20096, 1023365), (20885, 984704), (21980, 935648), (25120, 818692), (29239, 703360), (30772, 668320), (31360, 655789), (33416, 615440), (35168, 584780), (38465, 534656), (41770, 492352), (43960, 467824), (50240, 409346), (58478, 351680), (61544, 334160), (66832, 307720), (70336, 292390), (76930, 267328), (83540, 246176), (87920, 233912), (100480, 204673), (116956, 175840), (123088, 167080), (133664, 153860), (140672, 146195)]