2639000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:70

約数の個数: 128

約数和(自身を含む): 7862400

約数和(自身を除く): 5223400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 29, 35, 40, 50, 52, 56, 58, 65, 70, 91, 100, 104, 116, 125, 130, 140, 145, 175, 182, 200, 203, 232, 250, 260, 280, 290, 325, 350, 364, 377, 406, 455, 500, 520, 580, 650, 700, 725, 728, 754, 812, 875, 910, 1000, 1015, 1160, 1300, 1400, 1450, 1508, 1624, 1625, 1750, 1820, 1885, 2030, 2275, 2600, 2639, 2900, 3016, 3250, 3500, 3625, 3640, 3770, 4060, 4550, 5075, 5278, 5800, 6500, 7000, 7250, 7540, 8120, 9100, 9425, 10150, 10556, 11375, 13000, 13195, 14500, 15080, 18200, 18850, 20300, 21112, 22750, 25375, 26390, 29000, 37700, 40600, 45500, 47125, 50750, 52780, 65975, 75400, 91000, 94250, 101500, 105560, 131950, 188500, 203000, 263900, 329875, 377000, 527800, 659750, 1319500, 2639000]

約数ペア:

[(1, 2639000), (2, 1319500), (4, 659750), (5, 527800), (7, 377000), (8, 329875), (10, 263900), (13, 203000), (14, 188500), (20, 131950), (25, 105560), (26, 101500), (28, 94250), (29, 91000), (35, 75400), (40, 65975), (50, 52780), (52, 50750), (56, 47125), (58, 45500), (65, 40600), (70, 37700), (91, 29000), (100, 26390), (104, 25375), (116, 22750), (125, 21112), (130, 20300), (140, 18850), (145, 18200), (175, 15080), (182, 14500), (200, 13195), (203, 13000), (232, 11375), (250, 10556), (260, 10150), (280, 9425), (290, 9100), (325, 8120), (350, 7540), (364, 7250), (377, 7000), (406, 6500), (455, 5800), (500, 5278), (520, 5075), (580, 4550), (650, 4060), (700, 3770), (725, 3640), (728, 3625), (754, 3500), (812, 3250), (875, 3016), (910, 2900), (1000, 2639), (1015, 2600), (1160, 2275), (1300, 2030), (1400, 1885), (1450, 1820), (1508, 1750), (1624, 1625)]