18951400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 48981240

約数和(自身を除く): 30029840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 37, 40, 50, 52, 65, 74, 100, 104, 130, 148, 185, 197, 200, 260, 296, 325, 370, 394, 481, 520, 650, 740, 788, 925, 962, 985, 1300, 1480, 1576, 1850, 1924, 1970, 2405, 2561, 2600, 3700, 3848, 3940, 4810, 4925, 5122, 7289, 7400, 7880, 9620, 9850, 10244, 12025, 12805, 14578, 19240, 19700, 20488, 24050, 25610, 29156, 36445, 39400, 48100, 51220, 58312, 64025, 72890, 94757, 96200, 102440, 128050, 145780, 182225, 189514, 256100, 291560, 364450, 379028, 473785, 512200, 728900, 758056, 947570, 1457800, 1895140, 2368925, 3790280, 4737850, 9475700, 18951400]

約数ペア:

[(1, 18951400), (2, 9475700), (4, 4737850), (5, 3790280), (8, 2368925), (10, 1895140), (13, 1457800), (20, 947570), (25, 758056), (26, 728900), (37, 512200), (40, 473785), (50, 379028), (52, 364450), (65, 291560), (74, 256100), (100, 189514), (104, 182225), (130, 145780), (148, 128050), (185, 102440), (197, 96200), (200, 94757), (260, 72890), (296, 64025), (325, 58312), (370, 51220), (394, 48100), (481, 39400), (520, 36445), (650, 29156), (740, 25610), (788, 24050), (925, 20488), (962, 19700), (985, 19240), (1300, 14578), (1480, 12805), (1576, 12025), (1850, 10244), (1924, 9850), (1970, 9620), (2405, 7880), (2561, 7400), (2600, 7289), (3700, 5122), (3848, 4925), (3940, 4810)]