178998456

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2069

約数の個数: 128

約数和(自身を含む): 564480000

約数和(自身を除く): 385481544

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 41, 42, 52, 56, 78, 82, 84, 91, 104, 123, 156, 164, 168, 182, 246, 273, 287, 312, 328, 364, 492, 533, 546, 574, 728, 861, 984, 1066, 1092, 1148, 1599, 1722, 1999, 2132, 2184, 2296, 3198, 3444, 3731, 3998, 4264, 5997, 6396, 6888, 7462, 7996, 11193, 11994, 12792, 13993, 14924, 15992, 22386, 23988, 25987, 27986, 29848, 41979, 44772, 47976, 51974, 55972, 77961, 81959, 83958, 89544, 103948, 111944, 155922, 163918, 167916, 181909, 207896, 245877, 311844, 327836, 335832, 363818, 491754, 545727, 573713, 623688, 655672, 727636, 983508, 1065467, 1091454, 1147426, 1455272, 1721139, 1967016, 2130934, 2182908, 2294852, 3196401, 3442278, 4261868, 4365816, 4589704, 6392802, 6884556, 7458269, 8523736, 12785604, 13769112, 14916538, 22374807, 25571208, 29833076, 44749614, 59666152, 89499228, 178998456]

約数ペア:

[(1, 178998456), (2, 89499228), (3, 59666152), (4, 44749614), (6, 29833076), (7, 25571208), (8, 22374807), (12, 14916538), (13, 13769112), (14, 12785604), (21, 8523736), (24, 7458269), (26, 6884556), (28, 6392802), (39, 4589704), (41, 4365816), (42, 4261868), (52, 3442278), (56, 3196401), (78, 2294852), (82, 2182908), (84, 2130934), (91, 1967016), (104, 1721139), (123, 1455272), (156, 1147426), (164, 1091454), (168, 1065467), (182, 983508), (246, 727636), (273, 655672), (287, 623688), (312, 573713), (328, 545727), (364, 491754), (492, 363818), (533, 335832), (546, 327836), (574, 311844), (728, 245877), (861, 207896), (984, 181909), (1066, 167916), (1092, 163918), (1148, 155922), (1599, 111944), (1722, 103948), (1999, 89544), (2132, 83958), (2184, 81959), (2296, 77961), (3198, 55972), (3444, 51974), (3731, 47976), (3998, 44772), (4264, 41979), (5997, 29848), (6396, 27986), (6888, 25987), (7462, 23988), (7996, 22386), (11193, 15992), (11994, 14924), (12792, 13993)]