87721940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{937}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 191622144

約数和(自身を除く): 103900204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 151, 155, 302, 310, 604, 620, 755, 937, 1510, 1874, 3020, 3748, 4681, 4685, 9362, 9370, 18724, 18740, 23405, 29047, 46810, 58094, 93620, 116188, 141487, 145235, 282974, 290470, 565948, 580940, 707435, 1414870, 2829740, 4386097, 8772194, 17544388, 21930485, 43860970, 87721940]

約数ペア:

[(1, 87721940), (2, 43860970), (4, 21930485), (5, 17544388), (10, 8772194), (20, 4386097), (31, 2829740), (62, 1414870), (124, 707435), (151, 580940), (155, 565948), (302, 290470), (310, 282974), (604, 145235), (620, 141487), (755, 116188), (937, 93620), (1510, 58094), (1874, 46810), (3020, 29047), (3748, 23405), (4681, 18740), (4685, 18724), (9362, 9370)]