218150415

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{76949}}^1$

素因数の和:76973

約数の個数: 40

約数和(自身を含む): 446925600

約数和(自身を除く): 228775185

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 76949, 230847, 384745, 538643, 692541, 1154235, 1615929, 2077623, 2693215, 3462705, 4847787, 6232869, 8079645, 10388115, 14543361, 24238935, 31164345, 43630083, 72716805, 218150415]

約数ペア:

[(1, 218150415), (3, 72716805), (5, 43630083), (7, 31164345), (9, 24238935), (15, 14543361), (21, 10388115), (27, 8079645), (35, 6232869), (45, 4847787), (63, 3462705), (81, 2693215), (105, 2077623), (135, 1615929), (189, 1154235), (315, 692541), (405, 538643), (567, 384745), (945, 230847), (2835, 76949)]