19445720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1877}}^1$

素因数の和:1932

約数の個数: 64

約数和(自身を含む): 51382080

約数和(自身を除く): 31936360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 1877, 2072, 2590, 3754, 5180, 7508, 9385, 10360, 13139, 15016, 18770, 26278, 37540, 52556, 65695, 69449, 75080, 105112, 131390, 138898, 262780, 277796, 347245, 486143, 525560, 555592, 694490, 972286, 1388980, 1944572, 2430715, 2777960, 3889144, 4861430, 9722860, 19445720]

約数ペア:

[(1, 19445720), (2, 9722860), (4, 4861430), (5, 3889144), (7, 2777960), (8, 2430715), (10, 1944572), (14, 1388980), (20, 972286), (28, 694490), (35, 555592), (37, 525560), (40, 486143), (56, 347245), (70, 277796), (74, 262780), (140, 138898), (148, 131390), (185, 105112), (259, 75080), (280, 69449), (296, 65695), (370, 52556), (518, 37540), (740, 26278), (1036, 18770), (1295, 15016), (1480, 13139), (1877, 10360), (2072, 9385), (2590, 7508), (3754, 5180)]