28000128

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 82252800

約数和(自身を除く): 54252672

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 71, 78, 79, 96, 104, 128, 142, 156, 158, 192, 208, 213, 237, 284, 312, 316, 384, 416, 426, 474, 568, 624, 632, 832, 852, 923, 948, 1027, 1136, 1248, 1264, 1664, 1704, 1846, 1896, 2054, 2272, 2496, 2528, 2769, 3081, 3408, 3692, 3792, 4108, 4544, 4992, 5056, 5538, 5609, 6162, 6816, 7384, 7584, 8216, 9088, 10112, 11076, 11218, 12324, 13632, 14768, 15168, 16432, 16827, 22152, 22436, 24648, 27264, 29536, 30336, 32864, 33654, 44304, 44872, 49296, 59072, 65728, 67308, 72917, 88608, 89744, 98592, 118144, 131456, 134616, 145834, 177216, 179488, 197184, 218751, 269232, 291668, 354432, 358976, 394368, 437502, 538464, 583336, 717952, 875004, 1076928, 1166672, 1750008, 2153856, 2333344, 3500016, 4666688, 7000032, 9333376, 14000064, 28000128]

約数ペア:

[(1, 28000128), (2, 14000064), (3, 9333376), (4, 7000032), (6, 4666688), (8, 3500016), (12, 2333344), (13, 2153856), (16, 1750008), (24, 1166672), (26, 1076928), (32, 875004), (39, 717952), (48, 583336), (52, 538464), (64, 437502), (71, 394368), (78, 358976), (79, 354432), (96, 291668), (104, 269232), (128, 218751), (142, 197184), (156, 179488), (158, 177216), (192, 145834), (208, 134616), (213, 131456), (237, 118144), (284, 98592), (312, 89744), (316, 88608), (384, 72917), (416, 67308), (426, 65728), (474, 59072), (568, 49296), (624, 44872), (632, 44304), (832, 33654), (852, 32864), (923, 30336), (948, 29536), (1027, 27264), (1136, 24648), (1248, 22436), (1264, 22152), (1664, 16827), (1704, 16432), (1846, 15168), (1896, 14768), (2054, 13632), (2272, 12324), (2496, 11218), (2528, 11076), (2769, 10112), (3081, 9088), (3408, 8216), (3692, 7584), (3792, 7384), (4108, 6816), (4544, 6162), (4992, 5609), (5056, 5538)]