64891424

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{401}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 138279960

約数和(自身を除く): 73388536

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 389, 401, 416, 778, 802, 1556, 1604, 3112, 3208, 5057, 5213, 6224, 6416, 10114, 10426, 12448, 12832, 20228, 20852, 40456, 41704, 80912, 83408, 155989, 161824, 166816, 311978, 623956, 1247912, 2027857, 2495824, 4055714, 4991648, 8111428, 16222856, 32445712, 64891424]

約数ペア:

[(1, 64891424), (2, 32445712), (4, 16222856), (8, 8111428), (13, 4991648), (16, 4055714), (26, 2495824), (32, 2027857), (52, 1247912), (104, 623956), (208, 311978), (389, 166816), (401, 161824), (416, 155989), (778, 83408), (802, 80912), (1556, 41704), (1604, 40456), (3112, 20852), (3208, 20228), (5057, 12832), (5213, 12448), (6224, 10426), (6416, 10114)]