78815325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 142865856

約数和(自身を除く): 64050531

約数列:

[1, 3, 5, 15, 19, 25, 41, 57, 71, 75, 95, 123, 205, 213, 285, 355, 361, 475, 615, 779, 1025, 1065, 1083, 1349, 1425, 1775, 1805, 2337, 2911, 3075, 3895, 4047, 5325, 5415, 6745, 8733, 9025, 11685, 14555, 14801, 19475, 20235, 25631, 27075, 33725, 43665, 44403, 55309, 58425, 72775, 74005, 76893, 101175, 128155, 165927, 218325, 222015, 276545, 370025, 384465, 640775, 829635, 1050871, 1110075, 1382725, 1922325, 3152613, 4148175, 5254355, 15763065, 26271775, 78815325]

約数ペア:

[(1, 78815325), (3, 26271775), (5, 15763065), (15, 5254355), (19, 4148175), (25, 3152613), (41, 1922325), (57, 1382725), (71, 1110075), (75, 1050871), (95, 829635), (123, 640775), (205, 384465), (213, 370025), (285, 276545), (355, 222015), (361, 218325), (475, 165927), (615, 128155), (779, 101175), (1025, 76893), (1065, 74005), (1083, 72775), (1349, 58425), (1425, 55309), (1775, 44403), (1805, 43665), (2337, 33725), (2911, 27075), (3075, 25631), (3895, 20235), (4047, 19475), (5325, 14801), (5415, 14555), (6745, 11685), (8733, 9025)]