19287760

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4549}}^1$

素因数の和:4615

約数の個数: 40

約数和(自身を含む): 45700200

約数和(自身を除く): 26412440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4549, 9098, 18196, 22745, 36392, 45490, 72784, 90980, 181960, 241097, 363920, 482194, 964388, 1205485, 1928776, 2410970, 3857552, 4821940, 9643880, 19287760]

約数ペア:

[(1, 19287760), (2, 9643880), (4, 4821940), (5, 3857552), (8, 2410970), (10, 1928776), (16, 1205485), (20, 964388), (40, 482194), (53, 363920), (80, 241097), (106, 181960), (212, 90980), (265, 72784), (424, 45490), (530, 36392), (848, 22745), (1060, 18196), (2120, 9098), (4240, 4549)]