38738440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 101606400

約数和(自身を除く): 62867960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 41, 46, 52, 65, 79, 82, 92, 104, 115, 130, 158, 164, 184, 205, 230, 260, 299, 316, 328, 395, 410, 460, 520, 533, 598, 632, 790, 820, 920, 943, 1027, 1066, 1196, 1495, 1580, 1640, 1817, 1886, 2054, 2132, 2392, 2665, 2990, 3160, 3239, 3634, 3772, 4108, 4264, 4715, 5135, 5330, 5980, 6478, 7268, 7544, 8216, 9085, 9430, 10270, 10660, 11960, 12259, 12956, 14536, 16195, 18170, 18860, 20540, 21320, 23621, 24518, 25912, 32390, 36340, 37720, 41080, 42107, 47242, 49036, 61295, 64780, 72680, 74497, 84214, 94484, 98072, 118105, 122590, 129560, 148994, 168428, 188968, 210535, 236210, 245180, 297988, 336856, 372485, 421070, 472420, 490360, 595976, 744970, 842140, 944840, 968461, 1489940, 1684280, 1936922, 2979880, 3873844, 4842305, 7747688, 9684610, 19369220, 38738440]

約数ペア:

[(1, 38738440), (2, 19369220), (4, 9684610), (5, 7747688), (8, 4842305), (10, 3873844), (13, 2979880), (20, 1936922), (23, 1684280), (26, 1489940), (40, 968461), (41, 944840), (46, 842140), (52, 744970), (65, 595976), (79, 490360), (82, 472420), (92, 421070), (104, 372485), (115, 336856), (130, 297988), (158, 245180), (164, 236210), (184, 210535), (205, 188968), (230, 168428), (260, 148994), (299, 129560), (316, 122590), (328, 118105), (395, 98072), (410, 94484), (460, 84214), (520, 74497), (533, 72680), (598, 64780), (632, 61295), (790, 49036), (820, 47242), (920, 42107), (943, 41080), (1027, 37720), (1066, 36340), (1196, 32390), (1495, 25912), (1580, 24518), (1640, 23621), (1817, 21320), (1886, 20540), (2054, 18860), (2132, 18170), (2392, 16195), (2665, 14536), (2990, 12956), (3160, 12259), (3239, 11960), (3634, 10660), (3772, 10270), (4108, 9430), (4264, 9085), (4715, 8216), (5135, 7544), (5330, 7268), (5980, 6478)]