68890900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 162411480

約数和(自身を除く): 93520580

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 197, 260, 269, 325, 394, 538, 650, 788, 985, 1076, 1300, 1345, 1970, 2561, 2690, 3497, 3940, 4925, 5122, 5380, 6725, 6994, 9850, 10244, 12805, 13450, 13988, 17485, 19700, 25610, 26900, 34970, 51220, 52993, 64025, 69940, 87425, 105986, 128050, 174850, 211972, 256100, 264965, 349700, 529930, 688909, 1059860, 1324825, 1377818, 2649650, 2755636, 3444545, 5299300, 6889090, 13778180, 17222725, 34445450, 68890900]

約数ペア:

[(1, 68890900), (2, 34445450), (4, 17222725), (5, 13778180), (10, 6889090), (13, 5299300), (20, 3444545), (25, 2755636), (26, 2649650), (50, 1377818), (52, 1324825), (65, 1059860), (100, 688909), (130, 529930), (197, 349700), (260, 264965), (269, 256100), (325, 211972), (394, 174850), (538, 128050), (650, 105986), (788, 87425), (985, 69940), (1076, 64025), (1300, 52993), (1345, 51220), (1970, 34970), (2561, 26900), (2690, 25610), (3497, 19700), (3940, 17485), (4925, 13988), (5122, 13450), (5380, 12805), (6725, 10244), (6994, 9850)]