890681990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{14537}}^1$

素因数の和:15112

約数の個数: 32

約数和(自身を含む): 1752236064

約数和(自身を除く): 861554074

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 557, 1114, 2785, 5570, 6127, 12254, 14537, 29074, 30635, 61270, 72685, 145370, 159907, 319814, 799535, 1599070, 8097109, 16194218, 40485545, 80971090, 89068199, 178136398, 445340995, 890681990]

約数ペア:

[(1, 890681990), (2, 445340995), (5, 178136398), (10, 89068199), (11, 80971090), (22, 40485545), (55, 16194218), (110, 8097109), (557, 1599070), (1114, 799535), (2785, 319814), (5570, 159907), (6127, 145370), (12254, 72685), (14537, 61270), (29074, 30635)]