78198980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1811}}^1$

素因数の和:1964

約数の個数: 48

約数和(自身を含む): 175343616

約数和(自身を除く): 97144636

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 127, 170, 254, 340, 508, 635, 1270, 1811, 2159, 2540, 3622, 4318, 7244, 8636, 9055, 10795, 18110, 21590, 30787, 36220, 43180, 61574, 123148, 153935, 229997, 307870, 459994, 615740, 919988, 1149985, 2299970, 3909949, 4599940, 7819898, 15639796, 19549745, 39099490, 78198980]

約数ペア:

[(1, 78198980), (2, 39099490), (4, 19549745), (5, 15639796), (10, 7819898), (17, 4599940), (20, 3909949), (34, 2299970), (68, 1149985), (85, 919988), (127, 615740), (170, 459994), (254, 307870), (340, 229997), (508, 153935), (635, 123148), (1270, 61574), (1811, 43180), (2159, 36220), (2540, 30787), (3622, 21590), (4318, 18110), (7244, 10795), (8636, 9055)]