218791860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{74419}}^1$

素因数の和:74445

約数の個数: 72

約数和(自身を含む): 712645920

約数和(自身を除く): 493854060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 74419, 148838, 223257, 297676, 372095, 446514, 520933, 744190, 893028, 1041866, 1116285, 1488380, 1562799, 2083732, 2232570, 2604665, 3125598, 3646531, 4465140, 5209330, 6251196, 7293062, 7813995, 10418660, 10939593, 14586124, 15627990, 18232655, 21879186, 31255980, 36465310, 43758372, 54697965, 72930620, 109395930, 218791860]

約数ペア:

[(1, 218791860), (2, 109395930), (3, 72930620), (4, 54697965), (5, 43758372), (6, 36465310), (7, 31255980), (10, 21879186), (12, 18232655), (14, 15627990), (15, 14586124), (20, 10939593), (21, 10418660), (28, 7813995), (30, 7293062), (35, 6251196), (42, 5209330), (49, 4465140), (60, 3646531), (70, 3125598), (84, 2604665), (98, 2232570), (105, 2083732), (140, 1562799), (147, 1488380), (196, 1116285), (210, 1041866), (245, 893028), (294, 744190), (420, 520933), (490, 446514), (588, 372095), (735, 297676), (980, 223257), (1470, 148838), (2940, 74419)]