20165821780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{601}}^1$

素因数の和:858

約数の個数: 192

約数和(自身を含む): 49477349376

約数和(自身を除く): 29311527596

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 31, 46, 52, 62, 65, 92, 115, 124, 130, 155, 181, 230, 260, 299, 310, 362, 403, 460, 598, 601, 620, 713, 724, 806, 905, 1196, 1202, 1426, 1495, 1612, 1810, 2015, 2353, 2404, 2852, 2990, 3005, 3565, 3620, 4030, 4163, 4706, 5611, 5980, 6010, 7130, 7813, 8060, 8326, 9269, 9412, 11222, 11765, 12020, 13823, 14260, 15626, 16652, 18538, 18631, 20815, 22444, 23530, 27646, 28055, 31252, 37076, 37262, 39065, 41630, 46345, 47060, 54119, 55292, 56110, 69115, 72943, 74524, 78130, 83260, 92690, 93155, 108238, 108781, 112220, 129053, 138230, 145886, 156260, 179699, 185380, 186310, 216476, 217562, 242203, 258106, 270595, 276460, 291772, 359398, 364715, 372620, 428513, 435124, 484406, 516212, 541190, 543905, 645265, 718796, 729430, 857026, 898495, 968812, 1082380, 1087810, 1211015, 1290530, 1414153, 1458860, 1677689, 1714052, 1796990, 2142565, 2175620, 2422030, 2501963, 2581060, 2828306, 3355378, 3372211, 3593980, 4285130, 4844060, 5003926, 5570669, 5656612, 6710756, 6744422, 7070765, 8388445, 8570260, 10007852, 11141338, 12509815, 13488844, 14141530, 16776890, 16861055, 22282676, 25019630, 27853345, 28283060, 32525519, 33553780, 33722110, 43838743, 50039260, 55706690, 65051038, 67444220, 77560853, 87677486, 111413380, 130102076, 155121706, 162627595, 175354972, 219193715, 310243412, 325255190, 387804265, 438387430, 650510380, 775608530, 876774860, 1008291089, 1551217060, 2016582178, 4033164356, 5041455445, 10082910890, 20165821780]

約数ペア:

[(1, 20165821780), (2, 10082910890), (4, 5041455445), (5, 4033164356), (10, 2016582178), (13, 1551217060), (20, 1008291089), (23, 876774860), (26, 775608530), (31, 650510380), (46, 438387430), (52, 387804265), (62, 325255190), (65, 310243412), (92, 219193715), (115, 175354972), (124, 162627595), (130, 155121706), (155, 130102076), (181, 111413380), (230, 87677486), (260, 77560853), (299, 67444220), (310, 65051038), (362, 55706690), (403, 50039260), (460, 43838743), (598, 33722110), (601, 33553780), (620, 32525519), (713, 28283060), (724, 27853345), (806, 25019630), (905, 22282676), (1196, 16861055), (1202, 16776890), (1426, 14141530), (1495, 13488844), (1612, 12509815), (1810, 11141338), (2015, 10007852), (2353, 8570260), (2404, 8388445), (2852, 7070765), (2990, 6744422), (3005, 6710756), (3565, 5656612), (3620, 5570669), (4030, 5003926), (4163, 4844060), (4706, 4285130), (5611, 3593980), (5980, 3372211), (6010, 3355378), (7130, 2828306), (7813, 2581060), (8060, 2501963), (8326, 2422030), (9269, 2175620), (9412, 2142565), (11222, 1796990), (11765, 1714052), (12020, 1677689), (13823, 1458860), (14260, 1414153), (15626, 1290530), (16652, 1211015), (18538, 1087810), (18631, 1082380), (20815, 968812), (22444, 898495), (23530, 857026), (27646, 729430), (28055, 718796), (31252, 645265), (37076, 543905), (37262, 541190), (39065, 516212), (41630, 484406), (46345, 435124), (47060, 428513), (54119, 372620), (55292, 364715), (56110, 359398), (69115, 291772), (72943, 276460), (74524, 270595), (78130, 258106), (83260, 242203), (92690, 217562), (93155, 216476), (108238, 186310), (108781, 185380), (112220, 179699), (129053, 156260), (138230, 145886)]