18185940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1423}}^1$

素因数の和:1509

約数の個数: 72

約数和(自身を含む): 55980288

約数和(自身を除く): 37794348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 1423, 2130, 2556, 2846, 3195, 4260, 4269, 5692, 6390, 7115, 8538, 12780, 12807, 14230, 17076, 21345, 25614, 28460, 42690, 51228, 64035, 85380, 101033, 128070, 202066, 256140, 303099, 404132, 505165, 606198, 909297, 1010330, 1212396, 1515495, 1818594, 2020660, 3030990, 3637188, 4546485, 6061980, 9092970, 18185940]

約数ペア:

[(1, 18185940), (2, 9092970), (3, 6061980), (4, 4546485), (5, 3637188), (6, 3030990), (9, 2020660), (10, 1818594), (12, 1515495), (15, 1212396), (18, 1010330), (20, 909297), (30, 606198), (36, 505165), (45, 404132), (60, 303099), (71, 256140), (90, 202066), (142, 128070), (180, 101033), (213, 85380), (284, 64035), (355, 51228), (426, 42690), (639, 28460), (710, 25614), (852, 21345), (1065, 17076), (1278, 14230), (1420, 12807), (1423, 12780), (2130, 8538), (2556, 7115), (2846, 6390), (3195, 5692), (4260, 4269)]