20088890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4597}}^1$

素因数の和:4646

約数の個数: 32

約数和(自身を含む): 39726720

約数和(自身を除く): 19637830

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4597, 9194, 22985, 45970, 87343, 105731, 174686, 211462, 436715, 528655, 873430, 1057310, 2008889, 4017778, 10044445, 20088890]

約数ペア:

[(1, 20088890), (2, 10044445), (5, 4017778), (10, 2008889), (19, 1057310), (23, 873430), (38, 528655), (46, 436715), (95, 211462), (115, 174686), (190, 105731), (230, 87343), (437, 45970), (874, 22985), (2185, 9194), (4370, 4597)]