215141808

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{640303}}^1$

素因数の和:640321

約数の個数: 40

約数和(自身を含む): 635181568

約数和(自身を除く): 420039760

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 640303, 1280606, 1920909, 2561212, 3841818, 4482121, 5122424, 7683636, 8964242, 10244848, 13446363, 15367272, 17928484, 26892726, 30734544, 35856968, 53785452, 71713936, 107570904, 215141808]

約数ペア:

[(1, 215141808), (2, 107570904), (3, 71713936), (4, 53785452), (6, 35856968), (7, 30734544), (8, 26892726), (12, 17928484), (14, 15367272), (16, 13446363), (21, 10244848), (24, 8964242), (28, 7683636), (42, 5122424), (48, 4482121), (56, 3841818), (84, 2561212), (112, 1920909), (168, 1280606), (336, 640303)]