777777968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:690

約数の個数: 80

約数和(自身を含む): 1687392000

約数和(自身を除く): 909614032

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 53, 88, 106, 176, 199, 212, 398, 419, 424, 583, 796, 838, 848, 1166, 1592, 1676, 2189, 2332, 3184, 3352, 4378, 4609, 4664, 6704, 8756, 9218, 9328, 10547, 17512, 18436, 21094, 22207, 35024, 36872, 42188, 44414, 73744, 83381, 84376, 88828, 116017, 166762, 168752, 177656, 232034, 244277, 333524, 355312, 464068, 488554, 667048, 917191, 928136, 977108, 1334096, 1834382, 1856272, 1954216, 3668764, 3908432, 4419193, 7337528, 8838386, 14675056, 17676772, 35353544, 48611123, 70707088, 97222246, 194444492, 388888984, 777777968]

約数ペア:

[(1, 777777968), (2, 388888984), (4, 194444492), (8, 97222246), (11, 70707088), (16, 48611123), (22, 35353544), (44, 17676772), (53, 14675056), (88, 8838386), (106, 7337528), (176, 4419193), (199, 3908432), (212, 3668764), (398, 1954216), (419, 1856272), (424, 1834382), (583, 1334096), (796, 977108), (838, 928136), (848, 917191), (1166, 667048), (1592, 488554), (1676, 464068), (2189, 355312), (2332, 333524), (3184, 244277), (3352, 232034), (4378, 177656), (4609, 168752), (4664, 166762), (6704, 116017), (8756, 88828), (9218, 84376), (9328, 83381), (10547, 73744), (17512, 44414), (18436, 42188), (21094, 36872), (22207, 35024)]