181519740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5119}}^1$

素因数の和:5331

約数の個数: 72

約数和(自身を含む): 553512960

約数和(自身を除く): 371993220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2364, 2955, 3546, 3940, 5119, 5910, 7092, 8865, 10238, 11820, 15357, 17730, 20476, 25595, 30714, 35460, 46071, 51190, 61428, 76785, 92142, 102380, 153570, 184284, 230355, 307140, 460710, 921420, 1008443, 2016886, 3025329, 4033772, 5042215, 6050658, 9075987, 10084430, 12101316, 15126645, 18151974, 20168860, 30253290, 36303948, 45379935, 60506580, 90759870, 181519740]

約数ペア:

[(1, 181519740), (2, 90759870), (3, 60506580), (4, 45379935), (5, 36303948), (6, 30253290), (9, 20168860), (10, 18151974), (12, 15126645), (15, 12101316), (18, 10084430), (20, 9075987), (30, 6050658), (36, 5042215), (45, 4033772), (60, 3025329), (90, 2016886), (180, 1008443), (197, 921420), (394, 460710), (591, 307140), (788, 230355), (985, 184284), (1182, 153570), (1773, 102380), (1970, 92142), (2364, 76785), (2955, 61428), (3546, 51190), (3940, 46071), (5119, 35460), (5910, 30714), (7092, 25595), (8865, 20476), (10238, 17730), (11820, 15357)]