25571000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:322

約数の個数: 128

約数和(自身を含む): 73906560

約数和(自身を除く): 48335560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 125, 130, 140, 175, 182, 200, 250, 260, 280, 281, 325, 350, 364, 455, 500, 520, 562, 650, 700, 728, 875, 910, 1000, 1124, 1300, 1400, 1405, 1625, 1750, 1820, 1967, 2248, 2275, 2600, 2810, 3250, 3500, 3640, 3653, 3934, 4550, 5620, 6500, 7000, 7025, 7306, 7868, 9100, 9835, 11240, 11375, 13000, 14050, 14612, 15736, 18200, 18265, 19670, 22750, 25571, 28100, 29224, 35125, 36530, 39340, 45500, 49175, 51142, 56200, 70250, 73060, 78680, 91000, 91325, 98350, 102284, 127855, 140500, 146120, 182650, 196700, 204568, 245875, 255710, 281000, 365300, 393400, 456625, 491750, 511420, 639275, 730600, 913250, 983500, 1022840, 1278550, 1826500, 1967000, 2557100, 3196375, 3653000, 5114200, 6392750, 12785500, 25571000]

約数ペア:

[(1, 25571000), (2, 12785500), (4, 6392750), (5, 5114200), (7, 3653000), (8, 3196375), (10, 2557100), (13, 1967000), (14, 1826500), (20, 1278550), (25, 1022840), (26, 983500), (28, 913250), (35, 730600), (40, 639275), (50, 511420), (52, 491750), (56, 456625), (65, 393400), (70, 365300), (91, 281000), (100, 255710), (104, 245875), (125, 204568), (130, 196700), (140, 182650), (175, 146120), (182, 140500), (200, 127855), (250, 102284), (260, 98350), (280, 91325), (281, 91000), (325, 78680), (350, 73060), (364, 70250), (455, 56200), (500, 51142), (520, 49175), (562, 45500), (650, 39340), (700, 36530), (728, 35125), (875, 29224), (910, 28100), (1000, 25571), (1124, 22750), (1300, 19670), (1400, 18265), (1405, 18200), (1625, 15736), (1750, 14612), (1820, 14050), (1967, 13000), (2248, 11375), (2275, 11240), (2600, 9835), (2810, 9100), (3250, 7868), (3500, 7306), (3640, 7025), (3653, 7000), (3934, 6500), (4550, 5620)]