82180280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:349

約数の個数: 128

約数和(自身を含む): 230791680

約数和(自身を除く): 148611400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 107, 130, 140, 182, 211, 214, 260, 280, 364, 422, 428, 455, 520, 535, 728, 749, 844, 856, 910, 1055, 1070, 1391, 1477, 1498, 1688, 1820, 2110, 2140, 2743, 2782, 2954, 2996, 3640, 3745, 4220, 4280, 5486, 5564, 5908, 5992, 6955, 7385, 7490, 8440, 9737, 10972, 11128, 11816, 13715, 13910, 14770, 14980, 19201, 19474, 21944, 22577, 27430, 27820, 29540, 29960, 38402, 38948, 45154, 48685, 54860, 55640, 59080, 76804, 77896, 90308, 96005, 97370, 109720, 112885, 153608, 158039, 180616, 192010, 194740, 225770, 293501, 316078, 384020, 389480, 451540, 587002, 632156, 768040, 790195, 903080, 1174004, 1264312, 1467505, 1580390, 2054507, 2348008, 2935010, 3160780, 4109014, 5870020, 6321560, 8218028, 10272535, 11740040, 16436056, 20545070, 41090140, 82180280]

約数ペア:

[(1, 82180280), (2, 41090140), (4, 20545070), (5, 16436056), (7, 11740040), (8, 10272535), (10, 8218028), (13, 6321560), (14, 5870020), (20, 4109014), (26, 3160780), (28, 2935010), (35, 2348008), (40, 2054507), (52, 1580390), (56, 1467505), (65, 1264312), (70, 1174004), (91, 903080), (104, 790195), (107, 768040), (130, 632156), (140, 587002), (182, 451540), (211, 389480), (214, 384020), (260, 316078), (280, 293501), (364, 225770), (422, 194740), (428, 192010), (455, 180616), (520, 158039), (535, 153608), (728, 112885), (749, 109720), (844, 97370), (856, 96005), (910, 90308), (1055, 77896), (1070, 76804), (1391, 59080), (1477, 55640), (1498, 54860), (1688, 48685), (1820, 45154), (2110, 38948), (2140, 38402), (2743, 29960), (2782, 29540), (2954, 27820), (2996, 27430), (3640, 22577), (3745, 21944), (4220, 19474), (4280, 19201), (5486, 14980), (5564, 14770), (5908, 13910), (5992, 13715), (6955, 11816), (7385, 11128), (7490, 10972), (8440, 9737)]