81016680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 254119680

約数和(自身を除く): 173103000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 71, 74, 111, 120, 142, 148, 185, 213, 222, 257, 284, 296, 355, 370, 426, 444, 514, 555, 568, 710, 740, 771, 852, 888, 1028, 1065, 1110, 1285, 1420, 1480, 1542, 1704, 2056, 2130, 2220, 2570, 2627, 2840, 3084, 3855, 4260, 4440, 5140, 5254, 6168, 7710, 7881, 8520, 9509, 10280, 10508, 13135, 15420, 15762, 18247, 19018, 21016, 26270, 28527, 30840, 31524, 36494, 38036, 39405, 47545, 52540, 54741, 57054, 63048, 72988, 76072, 78810, 91235, 95090, 105080, 109482, 114108, 142635, 145976, 157620, 182470, 190180, 218964, 228216, 273705, 285270, 315240, 364940, 380360, 437928, 547410, 570540, 675139, 729880, 1094820, 1141080, 1350278, 2025417, 2189640, 2700556, 3375695, 4050834, 5401112, 6751390, 8101668, 10127085, 13502780, 16203336, 20254170, 27005560, 40508340, 81016680]

約数ペア:

[(1, 81016680), (2, 40508340), (3, 27005560), (4, 20254170), (5, 16203336), (6, 13502780), (8, 10127085), (10, 8101668), (12, 6751390), (15, 5401112), (20, 4050834), (24, 3375695), (30, 2700556), (37, 2189640), (40, 2025417), (60, 1350278), (71, 1141080), (74, 1094820), (111, 729880), (120, 675139), (142, 570540), (148, 547410), (185, 437928), (213, 380360), (222, 364940), (257, 315240), (284, 285270), (296, 273705), (355, 228216), (370, 218964), (426, 190180), (444, 182470), (514, 157620), (555, 145976), (568, 142635), (710, 114108), (740, 109482), (771, 105080), (852, 95090), (888, 91235), (1028, 78810), (1065, 76072), (1110, 72988), (1285, 63048), (1420, 57054), (1480, 54741), (1542, 52540), (1704, 47545), (2056, 39405), (2130, 38036), (2220, 36494), (2570, 31524), (2627, 30840), (2840, 28527), (3084, 26270), (3855, 21016), (4260, 19018), (4440, 18247), (5140, 15762), (5254, 15420), (6168, 13135), (7710, 10508), (7881, 10280), (8520, 9509)]