390098240

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{499}}^1$

素因数の和:872

約数の個数: 112

約数和(自身を含む): 1066800000

約数和(自身を除く): 676701760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 349, 448, 499, 560, 698, 998, 1120, 1396, 1745, 1996, 2240, 2443, 2495, 2792, 3490, 3493, 3992, 4886, 4990, 5584, 6980, 6986, 7984, 9772, 9980, 11168, 12215, 13960, 13972, 15968, 17465, 19544, 19960, 22336, 24430, 27920, 27944, 31936, 34930, 39088, 39920, 48860, 55840, 55888, 69860, 78176, 79840, 97720, 111680, 111776, 139720, 156352, 159680, 174151, 195440, 223552, 279440, 348302, 390880, 558880, 696604, 781760, 870755, 1117760, 1219057, 1393208, 1741510, 2438114, 2786416, 3483020, 4876228, 5572832, 6095285, 6966040, 9752456, 11145664, 12190570, 13932080, 19504912, 24381140, 27864160, 39009824, 48762280, 55728320, 78019648, 97524560, 195049120, 390098240]

約数ペア:

[(1, 390098240), (2, 195049120), (4, 97524560), (5, 78019648), (7, 55728320), (8, 48762280), (10, 39009824), (14, 27864160), (16, 24381140), (20, 19504912), (28, 13932080), (32, 12190570), (35, 11145664), (40, 9752456), (56, 6966040), (64, 6095285), (70, 5572832), (80, 4876228), (112, 3483020), (140, 2786416), (160, 2438114), (224, 1741510), (280, 1393208), (320, 1219057), (349, 1117760), (448, 870755), (499, 781760), (560, 696604), (698, 558880), (998, 390880), (1120, 348302), (1396, 279440), (1745, 223552), (1996, 195440), (2240, 174151), (2443, 159680), (2495, 156352), (2792, 139720), (3490, 111776), (3493, 111680), (3992, 97720), (4886, 79840), (4990, 78176), (5584, 69860), (6980, 55888), (6986, 55840), (7984, 48860), (9772, 39920), (9980, 39088), (11168, 34930), (12215, 31936), (13960, 27944), (13972, 27920), (15968, 24430), (17465, 22336), (19544, 19960)]