199120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:163

約数の個数: 40

約数和(自身を含む): 491040

約数和(自身を除く): 291920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 131, 152, 190, 262, 304, 380, 524, 655, 760, 1048, 1310, 1520, 2096, 2489, 2620, 4978, 5240, 9956, 10480, 12445, 19912, 24890, 39824, 49780, 99560, 199120]

約数ペア:

[(1, 199120), (2, 99560), (4, 49780), (5, 39824), (8, 24890), (10, 19912), (16, 12445), (19, 10480), (20, 9956), (38, 5240), (40, 4978), (76, 2620), (80, 2489), (95, 2096), (131, 1520), (152, 1310), (190, 1048), (262, 760), (304, 655), (380, 524)]