28686970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1481}}^1$

素因数の和:1650

約数の個数: 32

約数和(自身を含む): 56019600

約数和(自身を除く): 27332630

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1481, 1490, 1937, 2962, 3874, 7405, 9685, 14810, 19253, 19370, 38506, 96265, 192530, 220669, 441338, 1103345, 2206690, 2868697, 5737394, 14343485, 28686970]

約数ペア:

[(1, 28686970), (2, 14343485), (5, 5737394), (10, 2868697), (13, 2206690), (26, 1103345), (65, 441338), (130, 220669), (149, 192530), (298, 96265), (745, 38506), (1481, 19370), (1490, 19253), (1937, 14810), (2962, 9685), (3874, 7405)]