68160040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:227

約数の個数: 128

約数和(自身を含む): 177811200

約数和(自身を除く): 109651160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 41, 46, 52, 65, 82, 92, 104, 115, 130, 139, 164, 184, 205, 230, 260, 278, 299, 328, 410, 460, 520, 533, 556, 598, 695, 820, 920, 943, 1066, 1112, 1196, 1390, 1495, 1640, 1807, 1886, 2132, 2392, 2665, 2780, 2990, 3197, 3614, 3772, 4264, 4715, 5330, 5560, 5699, 5980, 6394, 7228, 7544, 9035, 9430, 10660, 11398, 11960, 12259, 12788, 14456, 15985, 18070, 18860, 21320, 22796, 24518, 25576, 28495, 31970, 36140, 37720, 41561, 45592, 49036, 56990, 61295, 63940, 72280, 74087, 83122, 98072, 113980, 122590, 127880, 131077, 148174, 166244, 207805, 227960, 245180, 262154, 296348, 332488, 370435, 415610, 490360, 524308, 592696, 655385, 740870, 831220, 1048616, 1310770, 1481740, 1662440, 1704001, 2621540, 2963480, 3408002, 5243080, 6816004, 8520005, 13632008, 17040010, 34080020, 68160040]

約数ペア:

[(1, 68160040), (2, 34080020), (4, 17040010), (5, 13632008), (8, 8520005), (10, 6816004), (13, 5243080), (20, 3408002), (23, 2963480), (26, 2621540), (40, 1704001), (41, 1662440), (46, 1481740), (52, 1310770), (65, 1048616), (82, 831220), (92, 740870), (104, 655385), (115, 592696), (130, 524308), (139, 490360), (164, 415610), (184, 370435), (205, 332488), (230, 296348), (260, 262154), (278, 245180), (299, 227960), (328, 207805), (410, 166244), (460, 148174), (520, 131077), (533, 127880), (556, 122590), (598, 113980), (695, 98072), (820, 83122), (920, 74087), (943, 72280), (1066, 63940), (1112, 61295), (1196, 56990), (1390, 49036), (1495, 45592), (1640, 41561), (1807, 37720), (1886, 36140), (2132, 31970), (2392, 28495), (2665, 25576), (2780, 24518), (2990, 22796), (3197, 21320), (3614, 18860), (3772, 18070), (4264, 15985), (4715, 14456), (5330, 12788), (5560, 12259), (5699, 11960), (5980, 11398), (6394, 10660), (7228, 9430), (7544, 9035)]