161640920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3677}}^1$

素因数の和:3852

約数の個数: 64

約数和(自身を含む): 418409280

約数和(自身を除く): 256768360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1570, 2198, 3140, 3677, 4396, 5495, 6280, 7354, 8792, 10990, 14708, 18385, 21980, 25739, 29416, 36770, 43960, 51478, 73540, 102956, 128695, 147080, 205912, 257390, 514780, 577289, 1029560, 1154578, 2309156, 2886445, 4041023, 4618312, 5772890, 8082046, 11545780, 16164092, 20205115, 23091560, 32328184, 40410230, 80820460, 161640920]

約数ペア:

[(1, 161640920), (2, 80820460), (4, 40410230), (5, 32328184), (7, 23091560), (8, 20205115), (10, 16164092), (14, 11545780), (20, 8082046), (28, 5772890), (35, 4618312), (40, 4041023), (56, 2886445), (70, 2309156), (140, 1154578), (157, 1029560), (280, 577289), (314, 514780), (628, 257390), (785, 205912), (1099, 147080), (1256, 128695), (1570, 102956), (2198, 73540), (3140, 51478), (3677, 43960), (4396, 36770), (5495, 29416), (6280, 25739), (7354, 21980), (8792, 18385), (10990, 14708)]