321515740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 850010112

約数和(自身を除く): 528494372

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 107, 127, 130, 140, 169, 182, 214, 254, 260, 338, 364, 428, 455, 508, 535, 635, 676, 749, 845, 889, 910, 1070, 1183, 1270, 1391, 1498, 1651, 1690, 1778, 1820, 2140, 2366, 2540, 2782, 2996, 3302, 3380, 3556, 3745, 4445, 4732, 5564, 5915, 6604, 6955, 7490, 8255, 8890, 9737, 11557, 11830, 13589, 13910, 14980, 16510, 17780, 18083, 19474, 21463, 23114, 23660, 27178, 27820, 33020, 36166, 38948, 42926, 46228, 48685, 54356, 57785, 67945, 72332, 85852, 90415, 95123, 97370, 107315, 115570, 126581, 135890, 150241, 176657, 180830, 190246, 194740, 214630, 231140, 253162, 271780, 300482, 353314, 361660, 380492, 429260, 475615, 506324, 600964, 632905, 706628, 751205, 883285, 951230, 1236599, 1265810, 1502410, 1766570, 1902460, 2296541, 2473198, 2531620, 3004820, 3533140, 4593082, 4946396, 6182995, 9186164, 11482705, 12365990, 16075787, 22965410, 24731980, 32151574, 45930820, 64303148, 80378935, 160757870, 321515740]

約数ペア:

[(1, 321515740), (2, 160757870), (4, 80378935), (5, 64303148), (7, 45930820), (10, 32151574), (13, 24731980), (14, 22965410), (20, 16075787), (26, 12365990), (28, 11482705), (35, 9186164), (52, 6182995), (65, 4946396), (70, 4593082), (91, 3533140), (107, 3004820), (127, 2531620), (130, 2473198), (140, 2296541), (169, 1902460), (182, 1766570), (214, 1502410), (254, 1265810), (260, 1236599), (338, 951230), (364, 883285), (428, 751205), (455, 706628), (508, 632905), (535, 600964), (635, 506324), (676, 475615), (749, 429260), (845, 380492), (889, 361660), (910, 353314), (1070, 300482), (1183, 271780), (1270, 253162), (1391, 231140), (1498, 214630), (1651, 194740), (1690, 190246), (1778, 180830), (1820, 176657), (2140, 150241), (2366, 135890), (2540, 126581), (2782, 115570), (2996, 107315), (3302, 97370), (3380, 95123), (3556, 90415), (3745, 85852), (4445, 72332), (4732, 67945), (5564, 57785), (5915, 54356), (6604, 48685), (6955, 46228), (7490, 42926), (8255, 38948), (8890, 36166), (9737, 33020), (11557, 27820), (11830, 27178), (13589, 23660), (13910, 23114), (14980, 21463), (16510, 19474), (17780, 18083)]