31317720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1621}}^1$

素因数の和:1665

約数の個数: 128

約数和(自身を含む): 112112640

約数和(自身を除く): 80794920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1621, 1932, 2415, 2760, 3220, 3242, 3864, 4830, 4863, 6440, 6484, 8105, 9660, 9726, 11347, 12968, 16210, 19320, 19452, 22694, 24315, 32420, 34041, 37283, 38904, 45388, 48630, 56735, 64840, 68082, 74566, 90776, 97260, 111849, 113470, 136164, 149132, 170205, 186415, 194520, 223698, 226940, 260981, 272328, 298264, 340410, 372830, 447396, 453880, 521962, 559245, 680820, 745660, 782943, 894792, 1043924, 1118490, 1304905, 1361640, 1491320, 1565886, 2087848, 2236980, 2609810, 3131772, 3914715, 4473960, 5219620, 6263544, 7829430, 10439240, 15658860, 31317720]

約数ペア:

[(1, 31317720), (2, 15658860), (3, 10439240), (4, 7829430), (5, 6263544), (6, 5219620), (7, 4473960), (8, 3914715), (10, 3131772), (12, 2609810), (14, 2236980), (15, 2087848), (20, 1565886), (21, 1491320), (23, 1361640), (24, 1304905), (28, 1118490), (30, 1043924), (35, 894792), (40, 782943), (42, 745660), (46, 680820), (56, 559245), (60, 521962), (69, 453880), (70, 447396), (84, 372830), (92, 340410), (105, 298264), (115, 272328), (120, 260981), (138, 226940), (140, 223698), (161, 194520), (168, 186415), (184, 170205), (210, 149132), (230, 136164), (276, 113470), (280, 111849), (322, 97260), (345, 90776), (420, 74566), (460, 68082), (483, 64840), (552, 56735), (644, 48630), (690, 45388), (805, 38904), (840, 37283), (920, 34041), (966, 32420), (1288, 24315), (1380, 22694), (1610, 19452), (1621, 19320), (1932, 16210), (2415, 12968), (2760, 11347), (3220, 9726), (3242, 9660), (3864, 8105), (4830, 6484), (4863, 6440)]