81891975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5839}}^1$

素因数の和:5880

約数の個数: 48

約数和(自身を含む): 156418560

約数和(自身を除く): 74526585

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 165, 187, 255, 275, 425, 561, 825, 935, 1275, 2805, 4675, 5839, 14025, 17517, 29195, 64229, 87585, 99263, 145975, 192687, 297789, 321145, 437925, 496315, 963435, 1091893, 1488945, 1605725, 2481575, 3275679, 4817175, 5459465, 7444725, 16378395, 27297325, 81891975]

約数ペア:

[(1, 81891975), (3, 27297325), (5, 16378395), (11, 7444725), (15, 5459465), (17, 4817175), (25, 3275679), (33, 2481575), (51, 1605725), (55, 1488945), (75, 1091893), (85, 963435), (165, 496315), (187, 437925), (255, 321145), (275, 297789), (425, 192687), (561, 145975), (825, 99263), (935, 87585), (1275, 64229), (2805, 29195), (4675, 17517), (5839, 14025)]