20867320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27457}}^1$

素因数の和:27487

約数の個数: 32

約数和(自身を含む): 49424400

約数和(自身を除く): 28557080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27457, 54914, 109828, 137285, 219656, 274570, 521683, 549140, 1043366, 1098280, 2086732, 2608415, 4173464, 5216830, 10433660, 20867320]

約数ペア:

[(1, 20867320), (2, 10433660), (4, 5216830), (5, 4173464), (8, 2608415), (10, 2086732), (19, 1098280), (20, 1043366), (38, 549140), (40, 521683), (76, 274570), (95, 219656), (152, 137285), (190, 109828), (380, 54914), (760, 27457)]