213051720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{253633}}^1$

素因数の和:253654

約数の個数: 64

約数和(自身を含む): 730465920

約数和(自身を除く): 517414200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 253633, 507266, 760899, 1014532, 1268165, 1521798, 1775431, 2029064, 2536330, 3043596, 3550862, 3804495, 5072660, 5326293, 6087192, 7101724, 7608990, 8877155, 10145320, 10652586, 14203448, 15217980, 17754310, 21305172, 26631465, 30435960, 35508620, 42610344, 53262930, 71017240, 106525860, 213051720]

約数ペア:

[(1, 213051720), (2, 106525860), (3, 71017240), (4, 53262930), (5, 42610344), (6, 35508620), (7, 30435960), (8, 26631465), (10, 21305172), (12, 17754310), (14, 15217980), (15, 14203448), (20, 10652586), (21, 10145320), (24, 8877155), (28, 7608990), (30, 7101724), (35, 6087192), (40, 5326293), (42, 5072660), (56, 3804495), (60, 3550862), (70, 3043596), (84, 2536330), (105, 2029064), (120, 1775431), (140, 1521798), (168, 1268165), (210, 1014532), (280, 760899), (420, 507266), (840, 253633)]