2019243620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{12329}}^1$

素因数の和:12788

約数の個数: 48

約数和(自身を含む): 4474310400

約数和(自身を除く): 2455066780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 431, 862, 1724, 2155, 4310, 8189, 8620, 12329, 16378, 24658, 32756, 40945, 49316, 61645, 81890, 123290, 163780, 234251, 246580, 468502, 937004, 1171255, 2342510, 4685020, 5313799, 10627598, 21255196, 26568995, 53137990, 100962181, 106275980, 201924362, 403848724, 504810905, 1009621810, 2019243620]

約数ペア:

[(1, 2019243620), (2, 1009621810), (4, 504810905), (5, 403848724), (10, 201924362), (19, 106275980), (20, 100962181), (38, 53137990), (76, 26568995), (95, 21255196), (190, 10627598), (380, 5313799), (431, 4685020), (862, 2342510), (1724, 1171255), (2155, 937004), (4310, 468502), (8189, 246580), (8620, 234251), (12329, 163780), (16378, 123290), (24658, 81890), (32756, 61645), (40945, 49316)]