7980457940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4384867}}^1$

素因数の和:4384896

約数の個数: 48

約数和(自身を含む): 20626419072

約数和(自身を除く): 12645961132

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4384867, 8769734, 17539468, 21924335, 30694069, 43848670, 57003271, 61388138, 87697340, 114006542, 122776276, 153470345, 228013084, 285016355, 306940690, 399022897, 570032710, 613881380, 798045794, 1140065420, 1596091588, 1995114485, 3990228970, 7980457940]

約数ペア:

[(1, 7980457940), (2, 3990228970), (4, 1995114485), (5, 1596091588), (7, 1140065420), (10, 798045794), (13, 613881380), (14, 570032710), (20, 399022897), (26, 306940690), (28, 285016355), (35, 228013084), (52, 153470345), (65, 122776276), (70, 114006542), (91, 87697340), (130, 61388138), (140, 57003271), (182, 43848670), (260, 30694069), (364, 21924335), (455, 17539468), (910, 8769734), (1820, 4384867)]