64490385

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{419}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 107089920

約数和(自身を除く): 42599535

約数列:

[1, 3, 5, 15, 31, 93, 155, 331, 419, 465, 993, 1257, 1655, 2095, 4965, 6285, 10261, 12989, 30783, 38967, 51305, 64945, 138689, 153915, 194835, 416067, 693445, 2080335, 4299359, 12898077, 21496795, 64490385]

約数ペア:

[(1, 64490385), (3, 21496795), (5, 12898077), (15, 4299359), (31, 2080335), (93, 693445), (155, 416067), (331, 194835), (419, 153915), (465, 138689), (993, 64945), (1257, 51305), (1655, 38967), (2095, 30783), (4965, 12989), (6285, 10261)]