18509420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 41583360

約数和(自身を除く): 23073940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 727, 1273, 1340, 1454, 2546, 2908, 3635, 5092, 6365, 7270, 12730, 13813, 14540, 25460, 27626, 48709, 55252, 69065, 97418, 138130, 194836, 243545, 276260, 487090, 925471, 974180, 1850942, 3701884, 4627355, 9254710, 18509420]

約数ペア:

[(1, 18509420), (2, 9254710), (4, 4627355), (5, 3701884), (10, 1850942), (19, 974180), (20, 925471), (38, 487090), (67, 276260), (76, 243545), (95, 194836), (134, 138130), (190, 97418), (268, 69065), (335, 55252), (380, 48709), (670, 27626), (727, 25460), (1273, 14540), (1340, 13813), (1454, 12730), (2546, 7270), (2908, 6365), (3635, 5092)]