9978900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:114

約数の個数: 144

約数和(自身を含む): 31664640

約数和(自身を除く): 21685740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 29, 30, 31, 37, 50, 58, 60, 62, 74, 75, 87, 93, 100, 111, 116, 124, 145, 148, 150, 155, 174, 185, 186, 222, 290, 300, 310, 348, 370, 372, 435, 444, 465, 555, 580, 620, 725, 740, 775, 870, 899, 925, 930, 1073, 1110, 1147, 1450, 1550, 1740, 1798, 1850, 1860, 2146, 2175, 2220, 2294, 2325, 2697, 2775, 2900, 3100, 3219, 3441, 3596, 3700, 4292, 4350, 4495, 4588, 4650, 5365, 5394, 5550, 5735, 6438, 6882, 8700, 8990, 9300, 10730, 10788, 11100, 11470, 12876, 13485, 13764, 16095, 17205, 17980, 21460, 22475, 22940, 26825, 26970, 28675, 32190, 33263, 34410, 44950, 53650, 53940, 57350, 64380, 66526, 67425, 68820, 80475, 86025, 89900, 99789, 107300, 114700, 133052, 134850, 160950, 166315, 172050, 199578, 269700, 321900, 332630, 344100, 399156, 498945, 665260, 831575, 997890, 1663150, 1995780, 2494725, 3326300, 4989450, 9978900]

約数ペア:

[(1, 9978900), (2, 4989450), (3, 3326300), (4, 2494725), (5, 1995780), (6, 1663150), (10, 997890), (12, 831575), (15, 665260), (20, 498945), (25, 399156), (29, 344100), (30, 332630), (31, 321900), (37, 269700), (50, 199578), (58, 172050), (60, 166315), (62, 160950), (74, 134850), (75, 133052), (87, 114700), (93, 107300), (100, 99789), (111, 89900), (116, 86025), (124, 80475), (145, 68820), (148, 67425), (150, 66526), (155, 64380), (174, 57350), (185, 53940), (186, 53650), (222, 44950), (290, 34410), (300, 33263), (310, 32190), (348, 28675), (370, 26970), (372, 26825), (435, 22940), (444, 22475), (465, 21460), (555, 17980), (580, 17205), (620, 16095), (725, 13764), (740, 13485), (775, 12876), (870, 11470), (899, 11100), (925, 10788), (930, 10730), (1073, 9300), (1110, 8990), (1147, 8700), (1450, 6882), (1550, 6438), (1740, 5735), (1798, 5550), (1850, 5394), (1860, 5365), (2146, 4650), (2175, 4588), (2220, 4495), (2294, 4350), (2325, 4292), (2697, 3700), (2775, 3596), (2900, 3441), (3100, 3219)]