20507460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17989}}^1$

素因数の和:18020

約数の個数: 48

約数和(自身を含む): 60446400

約数和(自身を除く): 39938940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17989, 35978, 53967, 71956, 89945, 107934, 179890, 215868, 269835, 341791, 359780, 539670, 683582, 1025373, 1079340, 1367164, 1708955, 2050746, 3417910, 4101492, 5126865, 6835820, 10253730, 20507460]

約数ペア:

[(1, 20507460), (2, 10253730), (3, 6835820), (4, 5126865), (5, 4101492), (6, 3417910), (10, 2050746), (12, 1708955), (15, 1367164), (19, 1079340), (20, 1025373), (30, 683582), (38, 539670), (57, 359780), (60, 341791), (76, 269835), (95, 215868), (114, 179890), (190, 107934), (228, 89945), (285, 71956), (380, 53967), (570, 35978), (1140, 17989)]