19981856930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9208229}}^1$

素因数の和:9208274

約数の個数: 32

約数和(自身を含む): 42431523840

約数和(自身を除く): 22449666910

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9208229, 18416458, 46041145, 64457603, 92082290, 128915206, 285455099, 322288015, 570910198, 644576030, 1427275495, 1998185693, 2854550990, 3996371386, 9990928465, 19981856930]

約数ペア:

[(1, 19981856930), (2, 9990928465), (5, 3996371386), (7, 2854550990), (10, 1998185693), (14, 1427275495), (31, 644576030), (35, 570910198), (62, 322288015), (70, 285455099), (155, 128915206), (217, 92082290), (310, 64457603), (434, 46041145), (1085, 18416458), (2170, 9208229)]