205891308

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3947}}^1$

素因数の和:3993

約数の個数: 120

約数和(自身を含む): 642039552

約数和(自身を除く): 436148244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 54, 63, 69, 81, 84, 92, 108, 126, 138, 161, 162, 189, 207, 252, 276, 322, 324, 378, 414, 483, 567, 621, 644, 756, 828, 966, 1134, 1242, 1449, 1863, 1932, 2268, 2484, 2898, 3726, 3947, 4347, 5796, 7452, 7894, 8694, 11841, 13041, 15788, 17388, 23682, 26082, 27629, 35523, 47364, 52164, 55258, 71046, 82887, 90781, 106569, 110516, 142092, 165774, 181562, 213138, 248661, 272343, 319707, 331548, 363124, 426276, 497322, 544686, 635467, 639414, 745983, 817029, 994644, 1089372, 1270934, 1278828, 1491966, 1634058, 1906401, 2237949, 2451087, 2541868, 2983932, 3268116, 3812802, 4475898, 4902174, 5719203, 7353261, 7625604, 8951796, 9804348, 11438406, 14706522, 17157609, 22876812, 29413044, 34315218, 51472827, 68630436, 102945654, 205891308]

約数ペア:

[(1, 205891308), (2, 102945654), (3, 68630436), (4, 51472827), (6, 34315218), (7, 29413044), (9, 22876812), (12, 17157609), (14, 14706522), (18, 11438406), (21, 9804348), (23, 8951796), (27, 7625604), (28, 7353261), (36, 5719203), (42, 4902174), (46, 4475898), (54, 3812802), (63, 3268116), (69, 2983932), (81, 2541868), (84, 2451087), (92, 2237949), (108, 1906401), (126, 1634058), (138, 1491966), (161, 1278828), (162, 1270934), (189, 1089372), (207, 994644), (252, 817029), (276, 745983), (322, 639414), (324, 635467), (378, 544686), (414, 497322), (483, 426276), (567, 363124), (621, 331548), (644, 319707), (756, 272343), (828, 248661), (966, 213138), (1134, 181562), (1242, 165774), (1449, 142092), (1863, 110516), (1932, 106569), (2268, 90781), (2484, 82887), (2898, 71046), (3726, 55258), (3947, 52164), (4347, 47364), (5796, 35523), (7452, 27629), (7894, 26082), (8694, 23682), (11841, 17388), (13041, 15788)]