19243620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9719}}^1$

素因数の和:9745

約数の個数: 72

約数和(自身を含む): 63685440

約数和(自身を除く): 44441820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9719, 19438, 29157, 38876, 48595, 58314, 87471, 97190, 106909, 116628, 145785, 174942, 194380, 213818, 291570, 320727, 349884, 427636, 437355, 534545, 583140, 641454, 874710, 962181, 1069090, 1282908, 1603635, 1749420, 1924362, 2138180, 3207270, 3848724, 4810905, 6414540, 9621810, 19243620]

約数ペア:

[(1, 19243620), (2, 9621810), (3, 6414540), (4, 4810905), (5, 3848724), (6, 3207270), (9, 2138180), (10, 1924362), (11, 1749420), (12, 1603635), (15, 1282908), (18, 1069090), (20, 962181), (22, 874710), (30, 641454), (33, 583140), (36, 534545), (44, 437355), (45, 427636), (55, 349884), (60, 320727), (66, 291570), (90, 213818), (99, 194380), (110, 174942), (132, 145785), (165, 116628), (180, 106909), (198, 97190), (220, 87471), (330, 58314), (396, 48595), (495, 38876), (660, 29157), (990, 19438), (1980, 9719)]