1315691720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{521}}^1$

素因数の和:879

約数の個数: 128

約数和(自身を含む): 3517862400

約数和(自身を除く): 2202170680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 311, 406, 521, 580, 622, 812, 1015, 1042, 1160, 1244, 1555, 1624, 2030, 2084, 2177, 2488, 2605, 3110, 3647, 4060, 4168, 4354, 5210, 6220, 7294, 8120, 8708, 9019, 10420, 10885, 12440, 14588, 15109, 17416, 18038, 18235, 20840, 21770, 29176, 30218, 36076, 36470, 43540, 45095, 60436, 63133, 72152, 72940, 75545, 87080, 90190, 105763, 120872, 126266, 145880, 151090, 162031, 180380, 211526, 252532, 302180, 315665, 324062, 360760, 423052, 505064, 528815, 604360, 631330, 648124, 810155, 846104, 1057630, 1134217, 1262660, 1296248, 1620310, 2115260, 2268434, 2525320, 3240620, 4230520, 4536868, 4698899, 5671085, 6481240, 9073736, 9397798, 11342170, 18795596, 22684340, 23494495, 32892293, 37591192, 45368680, 46988990, 65784586, 93977980, 131569172, 164461465, 187955960, 263138344, 328922930, 657845860, 1315691720]

約数ペア:

[(1, 1315691720), (2, 657845860), (4, 328922930), (5, 263138344), (7, 187955960), (8, 164461465), (10, 131569172), (14, 93977980), (20, 65784586), (28, 46988990), (29, 45368680), (35, 37591192), (40, 32892293), (56, 23494495), (58, 22684340), (70, 18795596), (116, 11342170), (140, 9397798), (145, 9073736), (203, 6481240), (232, 5671085), (280, 4698899), (290, 4536868), (311, 4230520), (406, 3240620), (521, 2525320), (580, 2268434), (622, 2115260), (812, 1620310), (1015, 1296248), (1042, 1262660), (1160, 1134217), (1244, 1057630), (1555, 846104), (1624, 810155), (2030, 648124), (2084, 631330), (2177, 604360), (2488, 528815), (2605, 505064), (3110, 423052), (3647, 360760), (4060, 324062), (4168, 315665), (4354, 302180), (5210, 252532), (6220, 211526), (7294, 180380), (8120, 162031), (8708, 151090), (9019, 145880), (10420, 126266), (10885, 120872), (12440, 105763), (14588, 90190), (15109, 87080), (17416, 75545), (18038, 72940), (18235, 72152), (20840, 63133), (21770, 60436), (29176, 45095), (30218, 43540), (36076, 36470)]