20516572020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{15773}}^1$

素因数の和:15974

約数の個数: 192

約数和(自身を含む): 69536839680

約数和(自身を除く): 49020267660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 163, 190, 210, 228, 266, 285, 326, 380, 399, 420, 489, 532, 570, 652, 665, 798, 815, 978, 1140, 1141, 1330, 1596, 1630, 1956, 1995, 2282, 2445, 2660, 3097, 3260, 3423, 3990, 4564, 4890, 5705, 6194, 6846, 7980, 9291, 9780, 11410, 12388, 13692, 15485, 15773, 17115, 18582, 21679, 22820, 30970, 31546, 34230, 37164, 43358, 46455, 47319, 61940, 63092, 65037, 68460, 78865, 86716, 92910, 94638, 108395, 110411, 130074, 157730, 185820, 189276, 216790, 220822, 236595, 260148, 299687, 315460, 325185, 331233, 433580, 441644, 473190, 552055, 599374, 650370, 662466, 899061, 946380, 1104110, 1198748, 1300740, 1324932, 1498435, 1656165, 1798122, 2097809, 2208220, 2570999, 2996870, 3312330, 3596244, 4195618, 4495305, 5141998, 5993740, 6293427, 6624660, 7712997, 8391236, 8990610, 10283996, 10489045, 12586854, 12854995, 15425994, 17981220, 17996993, 20978090, 25173708, 25709990, 30851988, 31467135, 35993986, 38564985, 41956180, 48848981, 51419980, 53990979, 62934270, 71987972, 77129970, 89984965, 97697962, 107981958, 125868540, 146546943, 154259940, 179969930, 195395924, 215963916, 244244905, 269954895, 293093886, 341942867, 359939860, 488489810, 539909790, 586187772, 683885734, 732734715, 976979620, 1025828601, 1079819580, 1367771468, 1465469430, 1709714335, 2051657202, 2930938860, 3419428670, 4103314404, 5129143005, 6838857340, 10258286010, 20516572020]

約数ペア:

[(1, 20516572020), (2, 10258286010), (3, 6838857340), (4, 5129143005), (5, 4103314404), (6, 3419428670), (7, 2930938860), (10, 2051657202), (12, 1709714335), (14, 1465469430), (15, 1367771468), (19, 1079819580), (20, 1025828601), (21, 976979620), (28, 732734715), (30, 683885734), (35, 586187772), (38, 539909790), (42, 488489810), (57, 359939860), (60, 341942867), (70, 293093886), (76, 269954895), (84, 244244905), (95, 215963916), (105, 195395924), (114, 179969930), (133, 154259940), (140, 146546943), (163, 125868540), (190, 107981958), (210, 97697962), (228, 89984965), (266, 77129970), (285, 71987972), (326, 62934270), (380, 53990979), (399, 51419980), (420, 48848981), (489, 41956180), (532, 38564985), (570, 35993986), (652, 31467135), (665, 30851988), (798, 25709990), (815, 25173708), (978, 20978090), (1140, 17996993), (1141, 17981220), (1330, 15425994), (1596, 12854995), (1630, 12586854), (1956, 10489045), (1995, 10283996), (2282, 8990610), (2445, 8391236), (2660, 7712997), (3097, 6624660), (3260, 6293427), (3423, 5993740), (3990, 5141998), (4564, 4495305), (4890, 4195618), (5705, 3596244), (6194, 3312330), (6846, 2996870), (7980, 2570999), (9291, 2208220), (9780, 2097809), (11410, 1798122), (12388, 1656165), (13692, 1498435), (15485, 1324932), (15773, 1300740), (17115, 1198748), (18582, 1104110), (21679, 946380), (22820, 899061), (30970, 662466), (31546, 650370), (34230, 599374), (37164, 552055), (43358, 473190), (46455, 441644), (47319, 433580), (61940, 331233), (63092, 325185), (65037, 315460), (68460, 299687), (78865, 260148), (86716, 236595), (92910, 220822), (94638, 216790), (108395, 189276), (110411, 185820), (130074, 157730)]