198198128

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{977}}^1$

素因数の和:1425

約数の個数: 40

約数和(自身を含む): 397772160

約数和(自身を除く): 199574032

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 409, 496, 818, 977, 1636, 1954, 3272, 3908, 6544, 7816, 12679, 15632, 25358, 30287, 50716, 60574, 101432, 121148, 202864, 242296, 399593, 484592, 799186, 1598372, 3196744, 6393488, 12387383, 24774766, 49549532, 99099064, 198198128]

約数ペア:

[(1, 198198128), (2, 99099064), (4, 49549532), (8, 24774766), (16, 12387383), (31, 6393488), (62, 3196744), (124, 1598372), (248, 799186), (409, 484592), (496, 399593), (818, 242296), (977, 202864), (1636, 121148), (1954, 101432), (3272, 60574), (3908, 50716), (6544, 30287), (7816, 25358), (12679, 15632)]