72018520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 197821440

約数和(自身を除く): 125802920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 53, 56, 70, 92, 106, 115, 140, 161, 184, 211, 212, 230, 265, 280, 322, 371, 422, 424, 460, 530, 644, 742, 805, 844, 920, 1055, 1060, 1219, 1288, 1477, 1484, 1610, 1688, 1855, 2110, 2120, 2438, 2954, 2968, 3220, 3710, 4220, 4853, 4876, 5908, 6095, 6440, 7385, 7420, 8440, 8533, 9706, 9752, 11183, 11816, 12190, 14770, 14840, 17066, 19412, 22366, 24265, 24380, 29540, 33971, 34132, 38824, 42665, 44732, 48530, 48760, 55915, 59080, 67942, 68264, 78281, 85330, 89464, 97060, 111830, 135884, 156562, 169855, 170660, 194120, 223660, 257209, 271768, 313124, 339710, 341320, 391405, 447320, 514418, 626248, 679420, 782810, 1028836, 1286045, 1358840, 1565620, 1800463, 2057672, 2572090, 3131240, 3600926, 5144180, 7201852, 9002315, 10288360, 14403704, 18004630, 36009260, 72018520]

約数ペア:

[(1, 72018520), (2, 36009260), (4, 18004630), (5, 14403704), (7, 10288360), (8, 9002315), (10, 7201852), (14, 5144180), (20, 3600926), (23, 3131240), (28, 2572090), (35, 2057672), (40, 1800463), (46, 1565620), (53, 1358840), (56, 1286045), (70, 1028836), (92, 782810), (106, 679420), (115, 626248), (140, 514418), (161, 447320), (184, 391405), (211, 341320), (212, 339710), (230, 313124), (265, 271768), (280, 257209), (322, 223660), (371, 194120), (422, 170660), (424, 169855), (460, 156562), (530, 135884), (644, 111830), (742, 97060), (805, 89464), (844, 85330), (920, 78281), (1055, 68264), (1060, 67942), (1219, 59080), (1288, 55915), (1477, 48760), (1484, 48530), (1610, 44732), (1688, 42665), (1855, 38824), (2110, 34132), (2120, 33971), (2438, 29540), (2954, 24380), (2968, 24265), (3220, 22366), (3710, 19412), (4220, 17066), (4853, 14840), (4876, 14770), (5908, 12190), (6095, 11816), (6440, 11183), (7385, 9752), (7420, 9706), (8440, 8533)]