128109900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9931}}^1$

素因数の和:9991

約数の個数: 72

約数和(自身を含む): 379322944

約数和(自身を除く): 251213044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 645, 860, 1075, 1290, 2150, 2580, 3225, 4300, 6450, 9931, 12900, 19862, 29793, 39724, 49655, 59586, 99310, 119172, 148965, 198620, 248275, 297930, 427033, 496550, 595860, 744825, 854066, 993100, 1281099, 1489650, 1708132, 2135165, 2562198, 2979300, 4270330, 5124396, 6405495, 8540660, 10675825, 12810990, 21351650, 25621980, 32027475, 42703300, 64054950, 128109900]

約数ペア:

[(1, 128109900), (2, 64054950), (3, 42703300), (4, 32027475), (5, 25621980), (6, 21351650), (10, 12810990), (12, 10675825), (15, 8540660), (20, 6405495), (25, 5124396), (30, 4270330), (43, 2979300), (50, 2562198), (60, 2135165), (75, 1708132), (86, 1489650), (100, 1281099), (129, 993100), (150, 854066), (172, 744825), (215, 595860), (258, 496550), (300, 427033), (430, 297930), (516, 248275), (645, 198620), (860, 148965), (1075, 119172), (1290, 99310), (2150, 59586), (2580, 49655), (3225, 39724), (4300, 29793), (6450, 19862), (9931, 12900)]