193911880

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{21739}}^1$

素因数の和:21973

約数の個数: 32

約数和(自身を含む): 438278400

約数和(自身を除く): 244366520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 21739, 43478, 86956, 108695, 173912, 217390, 434780, 869560, 4847797, 9695594, 19391188, 24238985, 38782376, 48477970, 96955940, 193911880]

約数ペア:

[(1, 193911880), (2, 96955940), (4, 48477970), (5, 38782376), (8, 24238985), (10, 19391188), (20, 9695594), (40, 4847797), (223, 869560), (446, 434780), (892, 217390), (1115, 173912), (1784, 108695), (2230, 86956), (4460, 43478), (8920, 21739)]