199808512

素因数分解:

$2^9\times {\mathrm{397}}^1\times {\mathrm{983}}^1$

素因数の和:1398

約数の個数: 40

約数和(自身を含む): 400639536

約数和(自身を除く): 200831024

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 397, 512, 794, 983, 1588, 1966, 3176, 3932, 6352, 7864, 12704, 15728, 25408, 31456, 50816, 62912, 101632, 125824, 203264, 251648, 390251, 503296, 780502, 1561004, 3122008, 6244016, 12488032, 24976064, 49952128, 99904256, 199808512]

約数ペア:

[(1, 199808512), (2, 99904256), (4, 49952128), (8, 24976064), (16, 12488032), (32, 6244016), (64, 3122008), (128, 1561004), (256, 780502), (397, 503296), (512, 390251), (794, 251648), (983, 203264), (1588, 125824), (1966, 101632), (3176, 62912), (3932, 50816), (6352, 31456), (7864, 25408), (12704, 15728)]