64787180240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26123863}}^1$

素因数の和:26123907

約数の個数: 40

約数和(自身を含む): 155489238528

約数和(自身を除く): 90702058288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26123863, 52247726, 104495452, 130619315, 208990904, 261238630, 417981808, 522477260, 809839753, 1044954520, 1619679506, 2089909040, 3239359012, 4049198765, 6478718024, 8098397530, 12957436048, 16196795060, 32393590120, 64787180240]

約数ペア:

[(1, 64787180240), (2, 32393590120), (4, 16196795060), (5, 12957436048), (8, 8098397530), (10, 6478718024), (16, 4049198765), (20, 3239359012), (31, 2089909040), (40, 1619679506), (62, 1044954520), (80, 809839753), (124, 522477260), (155, 417981808), (248, 261238630), (310, 208990904), (496, 130619315), (620, 104495452), (1240, 52247726), (2480, 26123863)]