21037034840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27680309}}^1$

素因数の和:27680339

約数の個数: 32

約数和(自身を含む): 49824558000

約数和(自身を除く): 28787523160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27680309, 55360618, 110721236, 138401545, 221442472, 276803090, 525925871, 553606180, 1051851742, 1107212360, 2103703484, 2629629355, 4207406968, 5259258710, 10518517420, 21037034840]

約数ペア:

[(1, 21037034840), (2, 10518517420), (4, 5259258710), (5, 4207406968), (8, 2629629355), (10, 2103703484), (19, 1107212360), (20, 1051851742), (38, 553606180), (40, 525925871), (76, 276803090), (95, 221442472), (152, 138401545), (190, 110721236), (380, 55360618), (760, 27680309)]