240563440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:251

約数の個数: 160

約数和(自身を含む): 641208960

約数和(自身を除く): 400645520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 89, 92, 104, 113, 115, 130, 178, 184, 208, 226, 230, 260, 299, 356, 368, 445, 452, 460, 520, 565, 598, 712, 890, 904, 920, 1040, 1130, 1157, 1196, 1424, 1469, 1495, 1780, 1808, 1840, 2047, 2260, 2314, 2392, 2599, 2938, 2990, 3560, 4094, 4520, 4628, 4784, 5198, 5785, 5876, 5980, 7120, 7345, 8188, 9040, 9256, 10057, 10235, 10396, 11570, 11752, 11960, 12995, 14690, 16376, 18512, 20114, 20470, 20792, 23140, 23504, 23920, 25990, 26611, 29380, 32752, 33787, 40228, 40940, 41584, 46280, 50285, 51980, 53222, 58760, 67574, 80456, 81880, 92560, 100570, 103960, 106444, 117520, 130741, 133055, 135148, 160912, 163760, 168935, 201140, 207920, 212888, 231311, 261482, 266110, 270296, 337870, 402280, 425776, 462622, 522964, 532220, 540592, 653705, 675740, 804560, 925244, 1045928, 1064440, 1156555, 1307410, 1351480, 1850488, 2091856, 2128880, 2313110, 2614820, 2702960, 3007043, 3700976, 4626220, 5229640, 6014086, 9252440, 10459280, 12028172, 15035215, 18504880, 24056344, 30070430, 48112688, 60140860, 120281720, 240563440]

約数ペア:

[(1, 240563440), (2, 120281720), (4, 60140860), (5, 48112688), (8, 30070430), (10, 24056344), (13, 18504880), (16, 15035215), (20, 12028172), (23, 10459280), (26, 9252440), (40, 6014086), (46, 5229640), (52, 4626220), (65, 3700976), (80, 3007043), (89, 2702960), (92, 2614820), (104, 2313110), (113, 2128880), (115, 2091856), (130, 1850488), (178, 1351480), (184, 1307410), (208, 1156555), (226, 1064440), (230, 1045928), (260, 925244), (299, 804560), (356, 675740), (368, 653705), (445, 540592), (452, 532220), (460, 522964), (520, 462622), (565, 425776), (598, 402280), (712, 337870), (890, 270296), (904, 266110), (920, 261482), (1040, 231311), (1130, 212888), (1157, 207920), (1196, 201140), (1424, 168935), (1469, 163760), (1495, 160912), (1780, 135148), (1808, 133055), (1840, 130741), (2047, 117520), (2260, 106444), (2314, 103960), (2392, 100570), (2599, 92560), (2938, 81880), (2990, 80456), (3560, 67574), (4094, 58760), (4520, 53222), (4628, 51980), (4784, 50285), (5198, 46280), (5785, 41584), (5876, 40940), (5980, 40228), (7120, 33787), (7345, 32752), (8188, 29380), (9040, 26611), (9256, 25990), (10057, 23920), (10235, 23504), (10396, 23140), (11570, 20792), (11752, 20470), (11960, 20114), (12995, 18512), (14690, 16376)]