31505520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{523}}^1$

素因数の和:790

約数の個数: 80

約数和(自身を含む): 98243712

約数和(自身を除く): 66738192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 251, 502, 523, 753, 1004, 1046, 1255, 1506, 1569, 2008, 2092, 2510, 2615, 3012, 3138, 3765, 4016, 4184, 5020, 5230, 6024, 6276, 7530, 7845, 8368, 10040, 10460, 12048, 12552, 15060, 15690, 20080, 20920, 25104, 30120, 31380, 41840, 60240, 62760, 125520, 131273, 262546, 393819, 525092, 656365, 787638, 1050184, 1312730, 1575276, 1969095, 2100368, 2625460, 3150552, 3938190, 5250920, 6301104, 7876380, 10501840, 15752760, 31505520]

約数ペア:

[(1, 31505520), (2, 15752760), (3, 10501840), (4, 7876380), (5, 6301104), (6, 5250920), (8, 3938190), (10, 3150552), (12, 2625460), (15, 2100368), (16, 1969095), (20, 1575276), (24, 1312730), (30, 1050184), (40, 787638), (48, 656365), (60, 525092), (80, 393819), (120, 262546), (240, 131273), (251, 125520), (502, 62760), (523, 60240), (753, 41840), (1004, 31380), (1046, 30120), (1255, 25104), (1506, 20920), (1569, 20080), (2008, 15690), (2092, 15060), (2510, 12552), (2615, 12048), (3012, 10460), (3138, 10040), (3765, 8368), (4016, 7845), (4184, 7530), (5020, 6276), (5230, 6024)]