218501920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:427

約数の個数: 192

約数和(自身を含む): 651974400

約数和(自身を除く): 433472480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 43, 52, 56, 65, 70, 80, 86, 91, 104, 112, 130, 140, 160, 172, 182, 208, 215, 224, 260, 280, 301, 344, 349, 364, 416, 430, 455, 520, 559, 560, 602, 688, 698, 728, 860, 910, 1040, 1118, 1120, 1204, 1376, 1396, 1456, 1505, 1720, 1745, 1820, 2080, 2236, 2408, 2443, 2792, 2795, 2912, 3010, 3440, 3490, 3640, 3913, 4472, 4537, 4816, 4886, 5584, 5590, 6020, 6880, 6980, 7280, 7826, 8944, 9074, 9632, 9772, 11168, 11180, 12040, 12215, 13960, 14560, 15007, 15652, 17888, 18148, 19544, 19565, 22360, 22685, 24080, 24430, 27920, 30014, 31304, 31759, 36296, 39088, 39130, 44720, 45370, 48160, 48860, 55840, 60028, 62608, 63518, 72592, 75035, 78176, 78260, 89440, 90740, 97720, 105049, 120056, 125216, 127036, 145184, 150070, 156520, 158795, 181480, 195091, 195440, 210098, 240112, 254072, 300140, 313040, 317590, 362960, 390182, 390880, 420196, 480224, 508144, 525245, 600280, 626080, 635180, 725920, 780364, 840392, 975455, 1016288, 1050490, 1200560, 1270360, 1365637, 1560728, 1680784, 1950910, 2100980, 2401120, 2540720, 2731274, 3121456, 3361568, 3901820, 4201960, 5081440, 5462548, 6242912, 6828185, 7803640, 8403920, 10925096, 13656370, 15607280, 16807840, 21850192, 27312740, 31214560, 43700384, 54625480, 109250960, 218501920]

約数ペア:

[(1, 218501920), (2, 109250960), (4, 54625480), (5, 43700384), (7, 31214560), (8, 27312740), (10, 21850192), (13, 16807840), (14, 15607280), (16, 13656370), (20, 10925096), (26, 8403920), (28, 7803640), (32, 6828185), (35, 6242912), (40, 5462548), (43, 5081440), (52, 4201960), (56, 3901820), (65, 3361568), (70, 3121456), (80, 2731274), (86, 2540720), (91, 2401120), (104, 2100980), (112, 1950910), (130, 1680784), (140, 1560728), (160, 1365637), (172, 1270360), (182, 1200560), (208, 1050490), (215, 1016288), (224, 975455), (260, 840392), (280, 780364), (301, 725920), (344, 635180), (349, 626080), (364, 600280), (416, 525245), (430, 508144), (455, 480224), (520, 420196), (559, 390880), (560, 390182), (602, 362960), (688, 317590), (698, 313040), (728, 300140), (860, 254072), (910, 240112), (1040, 210098), (1118, 195440), (1120, 195091), (1204, 181480), (1376, 158795), (1396, 156520), (1456, 150070), (1505, 145184), (1720, 127036), (1745, 125216), (1820, 120056), (2080, 105049), (2236, 97720), (2408, 90740), (2443, 89440), (2792, 78260), (2795, 78176), (2912, 75035), (3010, 72592), (3440, 63518), (3490, 62608), (3640, 60028), (3913, 55840), (4472, 48860), (4537, 48160), (4816, 45370), (4886, 44720), (5584, 39130), (5590, 39088), (6020, 36296), (6880, 31759), (6980, 31304), (7280, 30014), (7826, 27920), (8944, 24430), (9074, 24080), (9632, 22685), (9772, 22360), (11168, 19565), (11180, 19544), (12040, 18148), (12215, 17888), (13960, 15652), (14560, 15007)]