20921619040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{2767}}^1$

素因数の和:2989

約数の個数: 192

約数和(自身を含む): 58191243264

約数和(自身を除く): 37269624224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 140, 157, 160, 172, 215, 224, 280, 301, 314, 344, 430, 560, 602, 628, 688, 785, 860, 1099, 1120, 1204, 1256, 1376, 1505, 1570, 1720, 2198, 2408, 2512, 2767, 3010, 3140, 3440, 4396, 4816, 5024, 5495, 5534, 6020, 6280, 6751, 6880, 8792, 9632, 10990, 11068, 12040, 12560, 13502, 13835, 17584, 19369, 21980, 22136, 24080, 25120, 27004, 27670, 33755, 35168, 38738, 43960, 44272, 47257, 48160, 54008, 55340, 67510, 77476, 87920, 88544, 94514, 96845, 108016, 110680, 118981, 135020, 154952, 175840, 189028, 193690, 216032, 221360, 236285, 237962, 270040, 309904, 378056, 387380, 434419, 442720, 472570, 475924, 540080, 594905, 619808, 756112, 774760, 832867, 868838, 945140, 951848, 1080160, 1189810, 1512224, 1549520, 1665734, 1737676, 1890280, 1903696, 2172095, 2379620, 3040933, 3099040, 3331468, 3475352, 3780560, 3807392, 4164335, 4344190, 4759240, 6081866, 6662936, 6950704, 7561120, 8328670, 8688380, 9518480, 12163732, 13325872, 13901408, 15204665, 16657340, 17376760, 18680017, 19036960, 24327464, 26651744, 30409330, 33314680, 34753520, 37360034, 48654928, 60818660, 66629360, 69507040, 74720068, 93400085, 97309856, 121637320, 130760119, 133258720, 149440136, 186800170, 243274640, 261520238, 298880272, 373600340, 486549280, 523040476, 597760544, 653800595, 747200680, 1046080952, 1307601190, 1494401360, 2092161904, 2615202380, 2988802720, 4184323808, 5230404760, 10460809520, 20921619040]

約数ペア:

[(1, 20921619040), (2, 10460809520), (4, 5230404760), (5, 4184323808), (7, 2988802720), (8, 2615202380), (10, 2092161904), (14, 1494401360), (16, 1307601190), (20, 1046080952), (28, 747200680), (32, 653800595), (35, 597760544), (40, 523040476), (43, 486549280), (56, 373600340), (70, 298880272), (80, 261520238), (86, 243274640), (112, 186800170), (140, 149440136), (157, 133258720), (160, 130760119), (172, 121637320), (215, 97309856), (224, 93400085), (280, 74720068), (301, 69507040), (314, 66629360), (344, 60818660), (430, 48654928), (560, 37360034), (602, 34753520), (628, 33314680), (688, 30409330), (785, 26651744), (860, 24327464), (1099, 19036960), (1120, 18680017), (1204, 17376760), (1256, 16657340), (1376, 15204665), (1505, 13901408), (1570, 13325872), (1720, 12163732), (2198, 9518480), (2408, 8688380), (2512, 8328670), (2767, 7561120), (3010, 6950704), (3140, 6662936), (3440, 6081866), (4396, 4759240), (4816, 4344190), (5024, 4164335), (5495, 3807392), (5534, 3780560), (6020, 3475352), (6280, 3331468), (6751, 3099040), (6880, 3040933), (8792, 2379620), (9632, 2172095), (10990, 1903696), (11068, 1890280), (12040, 1737676), (12560, 1665734), (13502, 1549520), (13835, 1512224), (17584, 1189810), (19369, 1080160), (21980, 951848), (22136, 945140), (24080, 868838), (25120, 832867), (27004, 774760), (27670, 756112), (33755, 619808), (35168, 594905), (38738, 540080), (43960, 475924), (44272, 472570), (47257, 442720), (48160, 434419), (54008, 387380), (55340, 378056), (67510, 309904), (77476, 270040), (87920, 237962), (88544, 236285), (94514, 221360), (96845, 216032), (108016, 193690), (110680, 189028), (118981, 175840), (135020, 154952)]