89919370

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1423}}^1$

素因数の和:1590

約数の個数: 32

約数和(自身を含む): 166095360

約数和(自身を除く): 76175990

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 355, 445, 710, 890, 1423, 2846, 6319, 7115, 12638, 14230, 31595, 63190, 101033, 126647, 202066, 253294, 505165, 633235, 1010330, 1266470, 8991937, 17983874, 44959685, 89919370]

約数ペア:

[(1, 89919370), (2, 44959685), (5, 17983874), (10, 8991937), (71, 1266470), (89, 1010330), (142, 633235), (178, 505165), (355, 253294), (445, 202066), (710, 126647), (890, 101033), (1423, 63190), (2846, 31595), (6319, 14230), (7115, 12638)]