78825890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 168134400

約数和(自身を除く): 89308510

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 199, 277, 286, 398, 554, 715, 995, 1385, 1430, 1990, 2189, 2587, 2770, 3047, 3601, 4378, 5174, 6094, 7202, 10945, 12935, 15235, 18005, 21890, 25870, 28457, 30470, 36010, 39611, 55123, 56914, 79222, 110246, 142285, 198055, 275615, 284570, 396110, 551230, 606353, 716599, 1212706, 1433198, 3031765, 3582995, 6063530, 7165990, 7882589, 15765178, 39412945, 78825890]

約数ペア:

[(1, 78825890), (2, 39412945), (5, 15765178), (10, 7882589), (11, 7165990), (13, 6063530), (22, 3582995), (26, 3031765), (55, 1433198), (65, 1212706), (110, 716599), (130, 606353), (143, 551230), (199, 396110), (277, 284570), (286, 275615), (398, 198055), (554, 142285), (715, 110246), (995, 79222), (1385, 56914), (1430, 55123), (1990, 39611), (2189, 36010), (2587, 30470), (2770, 28457), (3047, 25870), (3601, 21890), (4378, 18005), (5174, 15235), (6094, 12935), (7202, 10945)]