18721801970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1\times {\mathrm{19553}}^1$

素因数の和:19787

約数の個数: 48

約数和(自身を含む): 35424573912

約数和(自身を除く): 16702771942

約数列:

[1, 2, 5, 10, 23, 46, 115, 181, 230, 362, 529, 905, 1058, 1810, 2645, 4163, 5290, 8326, 19553, 20815, 39106, 41630, 95749, 97765, 191498, 195530, 449719, 478745, 899438, 957490, 2248595, 3539093, 4497190, 7078186, 10343537, 17695465, 20687074, 35390930, 51717685, 81399139, 103435370, 162798278, 406995695, 813991390, 1872180197, 3744360394, 9360900985, 18721801970]

約数ペア:

[(1, 18721801970), (2, 9360900985), (5, 3744360394), (10, 1872180197), (23, 813991390), (46, 406995695), (115, 162798278), (181, 103435370), (230, 81399139), (362, 51717685), (529, 35390930), (905, 20687074), (1058, 17695465), (1810, 10343537), (2645, 7078186), (4163, 4497190), (5290, 3539093), (8326, 2248595), (19553, 957490), (20815, 899438), (39106, 478745), (41630, 449719), (95749, 195530), (97765, 191498)]