71803940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{997}}^1$

素因数の和:1296

約数の個数: 48

約数和(自身を含む): 163137072

約数和(自身を除く): 91333132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 277, 554, 997, 1108, 1385, 1994, 2770, 3601, 3988, 4985, 5540, 7202, 9970, 12961, 14404, 18005, 19940, 25922, 36010, 51844, 64805, 72020, 129610, 259220, 276169, 552338, 1104676, 1380845, 2761690, 3590197, 5523380, 7180394, 14360788, 17950985, 35901970, 71803940]

約数ペア:

[(1, 71803940), (2, 35901970), (4, 17950985), (5, 14360788), (10, 7180394), (13, 5523380), (20, 3590197), (26, 2761690), (52, 1380845), (65, 1104676), (130, 552338), (260, 276169), (277, 259220), (554, 129610), (997, 72020), (1108, 64805), (1385, 51844), (1994, 36010), (2770, 25922), (3601, 19940), (3988, 18005), (4985, 14404), (5540, 12961), (7202, 9970)]