51015040

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1009}}^1$

素因数の和:1107

約数の個数: 64

約数和(自身を含む): 123624000

約数和(自身を除く): 72608960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1009, 1264, 1580, 2018, 2528, 3160, 4036, 5045, 5056, 6320, 8072, 10090, 10112, 12640, 16144, 20180, 25280, 32288, 40360, 50560, 64576, 79711, 80720, 129152, 159422, 161440, 318844, 322880, 398555, 637688, 645760, 797110, 1275376, 1594220, 2550752, 3188440, 5101504, 6376880, 10203008, 12753760, 25507520, 51015040]

約数ペア:

[(1, 51015040), (2, 25507520), (4, 12753760), (5, 10203008), (8, 6376880), (10, 5101504), (16, 3188440), (20, 2550752), (32, 1594220), (40, 1275376), (64, 797110), (79, 645760), (80, 637688), (128, 398555), (158, 322880), (160, 318844), (316, 161440), (320, 159422), (395, 129152), (632, 80720), (640, 79711), (790, 64576), (1009, 50560), (1264, 40360), (1580, 32288), (2018, 25280), (2528, 20180), (3160, 16144), (4036, 12640), (5045, 10112), (5056, 10090), (6320, 8072)]