28899900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 108

約数和(自身を含む): 91603512

約数和(自身を除く): 62703612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 163, 180, 197, 225, 300, 326, 394, 450, 489, 591, 652, 788, 815, 900, 978, 985, 1182, 1467, 1630, 1773, 1956, 1970, 2364, 2445, 2934, 2955, 3260, 3546, 3940, 4075, 4890, 4925, 5868, 5910, 7092, 7335, 8150, 8865, 9780, 9850, 11820, 12225, 14670, 14775, 16300, 17730, 19700, 24450, 29340, 29550, 32111, 35460, 36675, 44325, 48900, 59100, 64222, 73350, 88650, 96333, 128444, 146700, 160555, 177300, 192666, 288999, 321110, 385332, 481665, 577998, 642220, 802775, 963330, 1155996, 1444995, 1605550, 1926660, 2408325, 2889990, 3211100, 4816650, 5779980, 7224975, 9633300, 14449950, 28899900]

約数ペア:

[(1, 28899900), (2, 14449950), (3, 9633300), (4, 7224975), (5, 5779980), (6, 4816650), (9, 3211100), (10, 2889990), (12, 2408325), (15, 1926660), (18, 1605550), (20, 1444995), (25, 1155996), (30, 963330), (36, 802775), (45, 642220), (50, 577998), (60, 481665), (75, 385332), (90, 321110), (100, 288999), (150, 192666), (163, 177300), (180, 160555), (197, 146700), (225, 128444), (300, 96333), (326, 88650), (394, 73350), (450, 64222), (489, 59100), (591, 48900), (652, 44325), (788, 36675), (815, 35460), (900, 32111), (978, 29550), (985, 29340), (1182, 24450), (1467, 19700), (1630, 17730), (1773, 16300), (1956, 14775), (1970, 14670), (2364, 12225), (2445, 11820), (2934, 9850), (2955, 9780), (3260, 8865), (3546, 8150), (3940, 7335), (4075, 7092), (4890, 5910), (4925, 5868)]