20165566720

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{1277}}^1$

素因数の和:1397

約数の個数: 216

約数和(自身を含む): 53062268616

約数和(自身を除く): 32896701896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 73, 80, 104, 128, 130, 146, 160, 169, 208, 256, 260, 292, 320, 338, 365, 416, 520, 584, 640, 676, 730, 832, 845, 949, 1040, 1168, 1277, 1280, 1352, 1460, 1664, 1690, 1898, 2080, 2336, 2554, 2704, 2920, 3328, 3380, 3796, 4160, 4672, 4745, 5108, 5408, 5840, 6385, 6760, 7592, 8320, 9344, 9490, 10216, 10816, 11680, 12337, 12770, 13520, 15184, 16601, 16640, 18688, 18980, 20432, 21632, 23360, 24674, 25540, 27040, 30368, 33202, 37960, 40864, 43264, 46720, 49348, 51080, 54080, 60736, 61685, 66404, 75920, 81728, 83005, 93221, 93440, 98696, 102160, 108160, 121472, 123370, 132808, 151840, 163456, 166010, 186442, 197392, 204320, 215813, 216320, 242944, 246740, 265616, 303680, 326912, 332020, 372884, 394784, 408640, 431626, 466105, 493480, 531232, 607360, 664040, 745768, 789568, 817280, 863252, 932210, 986960, 1062464, 1079065, 1211873, 1214720, 1328080, 1491536, 1579136, 1634560, 1726504, 1864420, 1973920, 2124928, 2158130, 2423746, 2656160, 2983072, 3158272, 3453008, 3728840, 3947840, 4249856, 4316260, 4847492, 5312320, 5966144, 6059365, 6906016, 7457680, 7895680, 8632520, 9694984, 10624640, 11932288, 12118730, 13812032, 14915360, 15754349, 15791360, 17265040, 19389968, 21249280, 23864576, 24237460, 27624064, 29830720, 31508698, 34530080, 38779936, 48474920, 55248128, 59661440, 63017396, 69060160, 77559872, 78771745, 96949840, 119322880, 126034792, 138120320, 155119744, 157543490, 193899680, 252069584, 276240640, 310239488, 315086980, 387799360, 504139168, 630173960, 775598720, 1008278336, 1260347920, 1551197440, 2016556672, 2520695840, 4033113344, 5041391680, 10082783360, 20165566720]

約数ペア:

[(1, 20165566720), (2, 10082783360), (4, 5041391680), (5, 4033113344), (8, 2520695840), (10, 2016556672), (13, 1551197440), (16, 1260347920), (20, 1008278336), (26, 775598720), (32, 630173960), (40, 504139168), (52, 387799360), (64, 315086980), (65, 310239488), (73, 276240640), (80, 252069584), (104, 193899680), (128, 157543490), (130, 155119744), (146, 138120320), (160, 126034792), (169, 119322880), (208, 96949840), (256, 78771745), (260, 77559872), (292, 69060160), (320, 63017396), (338, 59661440), (365, 55248128), (416, 48474920), (520, 38779936), (584, 34530080), (640, 31508698), (676, 29830720), (730, 27624064), (832, 24237460), (845, 23864576), (949, 21249280), (1040, 19389968), (1168, 17265040), (1277, 15791360), (1280, 15754349), (1352, 14915360), (1460, 13812032), (1664, 12118730), (1690, 11932288), (1898, 10624640), (2080, 9694984), (2336, 8632520), (2554, 7895680), (2704, 7457680), (2920, 6906016), (3328, 6059365), (3380, 5966144), (3796, 5312320), (4160, 4847492), (4672, 4316260), (4745, 4249856), (5108, 3947840), (5408, 3728840), (5840, 3453008), (6385, 3158272), (6760, 2983072), (7592, 2656160), (8320, 2423746), (9344, 2158130), (9490, 2124928), (10216, 1973920), (10816, 1864420), (11680, 1726504), (12337, 1634560), (12770, 1579136), (13520, 1491536), (15184, 1328080), (16601, 1214720), (16640, 1211873), (18688, 1079065), (18980, 1062464), (20432, 986960), (21632, 932210), (23360, 863252), (24674, 817280), (25540, 789568), (27040, 745768), (30368, 664040), (33202, 607360), (37960, 531232), (40864, 493480), (43264, 466105), (46720, 431626), (49348, 408640), (51080, 394784), (54080, 372884), (60736, 332020), (61685, 326912), (66404, 303680), (75920, 265616), (81728, 246740), (83005, 242944), (93221, 216320), (93440, 215813), (98696, 204320), (102160, 197392), (108160, 186442), (121472, 166010), (123370, 163456), (132808, 151840)]