19218290

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 24327310

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 431, 455, 490, 637, 686, 862, 910, 1274, 1715, 2155, 3017, 3185, 3430, 4310, 4459, 5603, 6034, 6370, 8918, 11206, 15085, 21119, 22295, 28015, 30170, 39221, 42238, 44590, 56030, 78442, 105595, 147833, 196105, 211190, 274547, 295666, 392210, 549094, 739165, 1372735, 1478330, 1921829, 2745470, 3843658, 9609145, 19218290]

約数ペア:

[(1, 19218290), (2, 9609145), (5, 3843658), (7, 2745470), (10, 1921829), (13, 1478330), (14, 1372735), (26, 739165), (35, 549094), (49, 392210), (65, 295666), (70, 274547), (91, 211190), (98, 196105), (130, 147833), (182, 105595), (245, 78442), (343, 56030), (431, 44590), (455, 42238), (490, 39221), (637, 30170), (686, 28015), (862, 22295), (910, 21119), (1274, 15085), (1715, 11206), (2155, 8918), (3017, 6370), (3185, 6034), (3430, 5603), (4310, 4459)]