18703880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35969}}^1$

素因数の和:35993

約数の個数: 32

約数和(自身を含む): 45322200

約数和(自身を除く): 26618320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35969, 71938, 143876, 179845, 287752, 359690, 467597, 719380, 935194, 1438760, 1870388, 2337985, 3740776, 4675970, 9351940, 18703880]

約数ペア:

[(1, 18703880), (2, 9351940), (4, 4675970), (5, 3740776), (8, 2337985), (10, 1870388), (13, 1438760), (20, 935194), (26, 719380), (40, 467597), (52, 359690), (65, 287752), (104, 179845), (130, 143876), (260, 71938), (520, 35969)]