77983880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149969}}^1$

素因数の和:149993

約数の個数: 32

約数和(自身を含む): 188962200

約数和(自身を除く): 110978320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 149969, 299938, 599876, 749845, 1199752, 1499690, 1949597, 2999380, 3899194, 5998760, 7798388, 9747985, 15596776, 19495970, 38991940, 77983880]

約数ペア:

[(1, 77983880), (2, 38991940), (4, 19495970), (5, 15596776), (8, 9747985), (10, 7798388), (13, 5998760), (20, 3899194), (26, 2999380), (40, 1949597), (52, 1499690), (65, 1199752), (104, 749845), (130, 599876), (260, 299938), (520, 149969)]