20197910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:808

約数の個数: 32

約数和(自身を含む): 38273472

約数和(自身を除く): 18075562

約数列:

[1, 2, 5, 10, 23, 46, 115, 137, 230, 274, 641, 685, 1282, 1370, 3151, 3205, 6302, 6410, 14743, 15755, 29486, 31510, 73715, 87817, 147430, 175634, 439085, 878170, 2019791, 4039582, 10098955, 20197910]

約数ペア:

[(1, 20197910), (2, 10098955), (5, 4039582), (10, 2019791), (23, 878170), (46, 439085), (115, 175634), (137, 147430), (230, 87817), (274, 73715), (641, 31510), (685, 29486), (1282, 15755), (1370, 14743), (3151, 6410), (3205, 6302)]