19501280

素因数分解:

$2^5\times 5^1\times {\mathrm{121883}}^1$

素因数の和:121898

約数の個数: 24

約数和(自身を含む): 46072152

約数和(自身を除く): 26570872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121883, 243766, 487532, 609415, 975064, 1218830, 1950128, 2437660, 3900256, 4875320, 9750640, 19501280]

約数ペア:

[(1, 19501280), (2, 9750640), (4, 4875320), (5, 3900256), (8, 2437660), (10, 1950128), (16, 1218830), (20, 975064), (32, 609415), (40, 487532), (80, 243766), (160, 121883)]