201278920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{30871}}^1$

素因数の和:31045

約数の個数: 32

約数和(自身を含む): 455670720

約数和(自身を除く): 254391800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 30871, 61742, 123484, 154355, 246968, 308710, 617420, 1234840, 5031973, 10063946, 20127892, 25159865, 40255784, 50319730, 100639460, 201278920]

約数ペア:

[(1, 201278920), (2, 100639460), (4, 50319730), (5, 40255784), (8, 25159865), (10, 20127892), (20, 10063946), (40, 5031973), (163, 1234840), (326, 617420), (652, 308710), (815, 246968), (1304, 154355), (1630, 123484), (3260, 61742), (6520, 30871)]