28125090

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:693

約数の個数: 128

約数和(自身を含む): 89579520

約数和(自身を除く): 61454430

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 27, 30, 35, 42, 45, 46, 54, 63, 69, 70, 90, 105, 115, 126, 135, 138, 161, 189, 207, 210, 230, 270, 315, 322, 345, 378, 414, 483, 621, 630, 647, 690, 805, 945, 966, 1035, 1242, 1294, 1449, 1610, 1890, 1941, 2070, 2415, 2898, 3105, 3235, 3882, 4347, 4529, 4830, 5823, 6210, 6470, 7245, 8694, 9058, 9705, 11646, 13587, 14490, 14881, 17469, 19410, 21735, 22645, 27174, 29115, 29762, 34938, 40761, 43470, 44643, 45290, 58230, 67935, 74405, 81522, 87345, 89286, 104167, 122283, 133929, 135870, 148810, 174690, 203805, 208334, 223215, 244566, 267858, 312501, 401787, 407610, 446430, 520835, 611415, 625002, 669645, 803574, 937503, 1041670, 1222830, 1339290, 1562505, 1875006, 2008935, 2812509, 3125010, 4017870, 4687515, 5625018, 9375030, 14062545, 28125090]

約数ペア:

[(1, 28125090), (2, 14062545), (3, 9375030), (5, 5625018), (6, 4687515), (7, 4017870), (9, 3125010), (10, 2812509), (14, 2008935), (15, 1875006), (18, 1562505), (21, 1339290), (23, 1222830), (27, 1041670), (30, 937503), (35, 803574), (42, 669645), (45, 625002), (46, 611415), (54, 520835), (63, 446430), (69, 407610), (70, 401787), (90, 312501), (105, 267858), (115, 244566), (126, 223215), (135, 208334), (138, 203805), (161, 174690), (189, 148810), (207, 135870), (210, 133929), (230, 122283), (270, 104167), (315, 89286), (322, 87345), (345, 81522), (378, 74405), (414, 67935), (483, 58230), (621, 45290), (630, 44643), (647, 43470), (690, 40761), (805, 34938), (945, 29762), (966, 29115), (1035, 27174), (1242, 22645), (1294, 21735), (1449, 19410), (1610, 17469), (1890, 14881), (1941, 14490), (2070, 13587), (2415, 11646), (2898, 9705), (3105, 9058), (3235, 8694), (3882, 7245), (4347, 6470), (4529, 6210), (4830, 5823)]