4895540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 11665920

約数和(自身を除く): 6770380

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 991, 1235, 1982, 2470, 3964, 4940, 4955, 9910, 12883, 18829, 19820, 25766, 37658, 51532, 64415, 75316, 94145, 128830, 188290, 244777, 257660, 376580, 489554, 979108, 1223885, 2447770, 4895540]

約数ペア:

[(1, 4895540), (2, 2447770), (4, 1223885), (5, 979108), (10, 489554), (13, 376580), (19, 257660), (20, 244777), (26, 188290), (38, 128830), (52, 94145), (65, 75316), (76, 64415), (95, 51532), (130, 37658), (190, 25766), (247, 19820), (260, 18829), (380, 12883), (494, 9910), (988, 4955), (991, 4940), (1235, 3964), (1982, 2470)]