1818682020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{20747}}^1$

素因数の和:21249

約数の個数: 72

約数和(自身を含む): 5528263104

約数和(自身を除く): 3709581084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 487, 974, 1461, 1948, 2435, 2922, 4383, 4870, 5844, 7305, 8766, 9740, 14610, 17532, 20747, 21915, 29220, 41494, 43830, 62241, 82988, 87660, 103735, 124482, 186723, 207470, 248964, 311205, 373446, 414940, 622410, 746892, 933615, 1244820, 1867230, 3734460, 10103789, 20207578, 30311367, 40415156, 50518945, 60622734, 90934101, 101037890, 121245468, 151556835, 181868202, 202075780, 303113670, 363736404, 454670505, 606227340, 909341010, 1818682020]

約数ペア:

[(1, 1818682020), (2, 909341010), (3, 606227340), (4, 454670505), (5, 363736404), (6, 303113670), (9, 202075780), (10, 181868202), (12, 151556835), (15, 121245468), (18, 101037890), (20, 90934101), (30, 60622734), (36, 50518945), (45, 40415156), (60, 30311367), (90, 20207578), (180, 10103789), (487, 3734460), (974, 1867230), (1461, 1244820), (1948, 933615), (2435, 746892), (2922, 622410), (4383, 414940), (4870, 373446), (5844, 311205), (7305, 248964), (8766, 207470), (9740, 186723), (14610, 124482), (17532, 103735), (20747, 87660), (21915, 82988), (29220, 62241), (41494, 43830)]