199921712

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{74821}}^1$

素因数の和:74996

約数の個数: 20

約数和(自身を含む): 389672976

約数和(自身を除く): 189751264

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 74821, 149642, 299284, 598568, 1197136, 12495107, 24990214, 49980428, 99960856, 199921712]

約数ペア:

[(1, 199921712), (2, 99960856), (4, 49980428), (8, 24990214), (16, 12495107), (167, 1197136), (334, 598568), (668, 299284), (1336, 149642), (2672, 74821)]