20576556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1$

素因数の和:612

約数の個数: 144

約数和(自身を含む): 69957888

約数和(自身を除く): 49381332

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 18, 21, 22, 26, 28, 33, 36, 39, 42, 44, 52, 63, 66, 77, 78, 84, 91, 99, 117, 126, 132, 143, 154, 156, 182, 198, 231, 234, 252, 273, 286, 308, 364, 396, 429, 462, 468, 546, 571, 572, 693, 819, 858, 924, 1001, 1092, 1142, 1287, 1386, 1638, 1713, 1716, 2002, 2284, 2574, 2772, 3003, 3276, 3426, 3997, 4004, 5139, 5148, 6006, 6281, 6852, 7423, 7994, 9009, 10278, 11991, 12012, 12562, 14846, 15988, 18018, 18843, 20556, 22269, 23982, 25124, 29692, 35973, 36036, 37686, 43967, 44538, 47964, 51961, 56529, 66807, 71946, 75372, 81653, 87934, 89076, 103922, 113058, 131901, 133614, 143892, 155883, 163306, 175868, 207844, 226116, 244959, 263802, 267228, 311766, 326612, 395703, 467649, 489918, 527604, 571571, 623532, 734877, 791406, 935298, 979836, 1143142, 1469754, 1582812, 1714713, 1870596, 2286284, 2939508, 3429426, 5144139, 6858852, 10288278, 20576556]

約数ペア:

[(1, 20576556), (2, 10288278), (3, 6858852), (4, 5144139), (6, 3429426), (7, 2939508), (9, 2286284), (11, 1870596), (12, 1714713), (13, 1582812), (14, 1469754), (18, 1143142), (21, 979836), (22, 935298), (26, 791406), (28, 734877), (33, 623532), (36, 571571), (39, 527604), (42, 489918), (44, 467649), (52, 395703), (63, 326612), (66, 311766), (77, 267228), (78, 263802), (84, 244959), (91, 226116), (99, 207844), (117, 175868), (126, 163306), (132, 155883), (143, 143892), (154, 133614), (156, 131901), (182, 113058), (198, 103922), (231, 89076), (234, 87934), (252, 81653), (273, 75372), (286, 71946), (308, 66807), (364, 56529), (396, 51961), (429, 47964), (462, 44538), (468, 43967), (546, 37686), (571, 36036), (572, 35973), (693, 29692), (819, 25124), (858, 23982), (924, 22269), (1001, 20556), (1092, 18843), (1142, 18018), (1287, 15988), (1386, 14846), (1638, 12562), (1713, 12012), (1716, 11991), (2002, 10278), (2284, 9009), (2574, 7994), (2772, 7423), (3003, 6852), (3276, 6281), (3426, 6006), (3997, 5148), (4004, 5139)]