215479880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1699

約数の個数: 128

約数和(自身を含む): 618900480

約数和(自身を除く): 403420600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 43, 44, 55, 56, 70, 77, 86, 88, 110, 140, 154, 172, 215, 220, 280, 301, 308, 344, 385, 430, 440, 473, 602, 616, 770, 860, 946, 1204, 1505, 1540, 1627, 1720, 1892, 2365, 2408, 3010, 3080, 3254, 3311, 3784, 4730, 6020, 6508, 6622, 8135, 9460, 11389, 12040, 13016, 13244, 16270, 16555, 17897, 18920, 22778, 26488, 32540, 33110, 35794, 45556, 56945, 65080, 66220, 69961, 71588, 89485, 91112, 113890, 125279, 132440, 139922, 143176, 178970, 227780, 250558, 279844, 349805, 357940, 455560, 489727, 501116, 559688, 626395, 699610, 715880, 769571, 979454, 1002232, 1252790, 1399220, 1539142, 1958908, 2448635, 2505580, 2798440, 3078284, 3847855, 3917816, 4897270, 5011160, 5386997, 6156568, 7695710, 9794540, 10773994, 15391420, 19589080, 21547988, 26934985, 30782840, 43095976, 53869970, 107739940, 215479880]

約数ペア:

[(1, 215479880), (2, 107739940), (4, 53869970), (5, 43095976), (7, 30782840), (8, 26934985), (10, 21547988), (11, 19589080), (14, 15391420), (20, 10773994), (22, 9794540), (28, 7695710), (35, 6156568), (40, 5386997), (43, 5011160), (44, 4897270), (55, 3917816), (56, 3847855), (70, 3078284), (77, 2798440), (86, 2505580), (88, 2448635), (110, 1958908), (140, 1539142), (154, 1399220), (172, 1252790), (215, 1002232), (220, 979454), (280, 769571), (301, 715880), (308, 699610), (344, 626395), (385, 559688), (430, 501116), (440, 489727), (473, 455560), (602, 357940), (616, 349805), (770, 279844), (860, 250558), (946, 227780), (1204, 178970), (1505, 143176), (1540, 139922), (1627, 132440), (1720, 125279), (1892, 113890), (2365, 91112), (2408, 89485), (3010, 71588), (3080, 69961), (3254, 66220), (3311, 65080), (3784, 56945), (4730, 45556), (6020, 35794), (6508, 33110), (6622, 32540), (8135, 26488), (9460, 22778), (11389, 18920), (12040, 17897), (13016, 16555), (13244, 16270)]