28503384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:481

約数の個数: 128

約数和(自身を含む): 90746880

約数和(自身を除く): 62243496

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 31, 39, 42, 52, 56, 62, 78, 84, 91, 93, 104, 124, 156, 168, 182, 186, 217, 248, 273, 312, 364, 372, 403, 421, 434, 546, 651, 728, 744, 806, 842, 868, 1092, 1209, 1263, 1302, 1612, 1684, 1736, 2184, 2418, 2526, 2604, 2821, 2947, 3224, 3368, 4836, 5052, 5208, 5473, 5642, 5894, 8463, 8841, 9672, 10104, 10946, 11284, 11788, 13051, 16419, 16926, 17682, 21892, 22568, 23576, 26102, 32838, 33852, 35364, 38311, 39153, 43784, 52204, 65676, 67704, 70728, 76622, 78306, 91357, 104408, 114933, 131352, 153244, 156612, 169663, 182714, 229866, 274071, 306488, 313224, 339326, 365428, 459732, 508989, 548142, 678652, 730856, 919464, 1017978, 1096284, 1187641, 1357304, 2035956, 2192568, 2375282, 3562923, 4071912, 4750564, 7125846, 9501128, 14251692, 28503384]

約数ペア:

[(1, 28503384), (2, 14251692), (3, 9501128), (4, 7125846), (6, 4750564), (7, 4071912), (8, 3562923), (12, 2375282), (13, 2192568), (14, 2035956), (21, 1357304), (24, 1187641), (26, 1096284), (28, 1017978), (31, 919464), (39, 730856), (42, 678652), (52, 548142), (56, 508989), (62, 459732), (78, 365428), (84, 339326), (91, 313224), (93, 306488), (104, 274071), (124, 229866), (156, 182714), (168, 169663), (182, 156612), (186, 153244), (217, 131352), (248, 114933), (273, 104408), (312, 91357), (364, 78306), (372, 76622), (403, 70728), (421, 67704), (434, 65676), (546, 52204), (651, 43784), (728, 39153), (744, 38311), (806, 35364), (842, 33852), (868, 32838), (1092, 26102), (1209, 23576), (1263, 22568), (1302, 21892), (1612, 17682), (1684, 16926), (1736, 16419), (2184, 13051), (2418, 11788), (2526, 11284), (2604, 10946), (2821, 10104), (2947, 9672), (3224, 8841), (3368, 8463), (4836, 5894), (5052, 5642), (5208, 5473)]