1296751300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1999}}^1$

素因数の和:2525

約数の個数: 72

約数和(自身を含む): 3038000000

約数和(自身を除く): 1741248700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 499, 650, 998, 1300, 1996, 1999, 2495, 3998, 4990, 6487, 7996, 9980, 9995, 12475, 12974, 19990, 24950, 25948, 25987, 32435, 39980, 49900, 49975, 51974, 64870, 99950, 103948, 129740, 129935, 162175, 199900, 259870, 324350, 519740, 648700, 649675, 997501, 1299350, 1995002, 2598700, 3990004, 4987505, 9975010, 12967513, 19950020, 24937525, 25935026, 49875050, 51870052, 64837565, 99750100, 129675130, 259350260, 324187825, 648375650, 1296751300]

約数ペア:

[(1, 1296751300), (2, 648375650), (4, 324187825), (5, 259350260), (10, 129675130), (13, 99750100), (20, 64837565), (25, 51870052), (26, 49875050), (50, 25935026), (52, 24937525), (65, 19950020), (100, 12967513), (130, 9975010), (260, 4987505), (325, 3990004), (499, 2598700), (650, 1995002), (998, 1299350), (1300, 997501), (1996, 649675), (1999, 648700), (2495, 519740), (3998, 324350), (4990, 259870), (6487, 199900), (7996, 162175), (9980, 129935), (9995, 129740), (12475, 103948), (12974, 99950), (19990, 64870), (24950, 51974), (25948, 49975), (25987, 49900), (32435, 39980)]