20279460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17789}}^1$

素因数の和:17820

約数の個数: 48

約数和(自身を含む): 59774400

約数和(自身を除く): 39494940

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, 17789, 35578, 53367, 71156, 88945, 106734, 177890, 213468, 266835, 337991, 355780, 533670, 675982, 1013973, 1067340, 1351964, 1689955, 2027946, 3379910, 4055892, 5069865, 6759820, 10139730, 20279460]

約数ペア:

[(1, 20279460), (2, 10139730), (3, 6759820), (4, 5069865), (5, 4055892), (6, 3379910), (10, 2027946), (12, 1689955), (15, 1351964), (19, 1067340), (20, 1013973), (30, 675982), (38, 533670), (57, 355780), (60, 337991), (76, 266835), (95, 213468), (114, 177890), (190, 106734), (228, 88945), (285, 71156), (380, 53367), (570, 35578), (1140, 17789)]