18879900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 60662784

約数和(自身を除く): 41782884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 47, 50, 52, 60, 65, 75, 78, 94, 100, 103, 130, 141, 150, 156, 188, 195, 206, 235, 260, 282, 300, 309, 325, 390, 412, 470, 515, 564, 611, 618, 650, 705, 780, 940, 975, 1030, 1175, 1222, 1236, 1300, 1339, 1410, 1545, 1833, 1950, 2060, 2350, 2444, 2575, 2678, 2820, 3055, 3090, 3525, 3666, 3900, 4017, 4700, 4841, 5150, 5356, 6110, 6180, 6695, 7050, 7332, 7725, 8034, 9165, 9682, 10300, 12220, 13390, 14100, 14523, 15275, 15450, 16068, 18330, 19364, 20085, 24205, 26780, 29046, 30550, 30900, 33475, 36660, 40170, 45825, 48410, 58092, 61100, 62933, 66950, 72615, 80340, 91650, 96820, 100425, 121025, 125866, 133900, 145230, 183300, 188799, 200850, 242050, 251732, 290460, 314665, 363075, 377598, 401700, 484100, 629330, 726150, 755196, 943995, 1258660, 1452300, 1573325, 1887990, 3146650, 3775980, 4719975, 6293300, 9439950, 18879900]

約数ペア:

[(1, 18879900), (2, 9439950), (3, 6293300), (4, 4719975), (5, 3775980), (6, 3146650), (10, 1887990), (12, 1573325), (13, 1452300), (15, 1258660), (20, 943995), (25, 755196), (26, 726150), (30, 629330), (39, 484100), (47, 401700), (50, 377598), (52, 363075), (60, 314665), (65, 290460), (75, 251732), (78, 242050), (94, 200850), (100, 188799), (103, 183300), (130, 145230), (141, 133900), (150, 125866), (156, 121025), (188, 100425), (195, 96820), (206, 91650), (235, 80340), (260, 72615), (282, 66950), (300, 62933), (309, 61100), (325, 58092), (390, 48410), (412, 45825), (470, 40170), (515, 36660), (564, 33475), (611, 30900), (618, 30550), (650, 29046), (705, 26780), (780, 24205), (940, 20085), (975, 19364), (1030, 18330), (1175, 16068), (1222, 15450), (1236, 15275), (1300, 14523), (1339, 14100), (1410, 13390), (1545, 12220), (1833, 10300), (1950, 9682), (2060, 9165), (2350, 8034), (2444, 7725), (2575, 7332), (2678, 7050), (2820, 6695), (3055, 6180), (3090, 6110), (3525, 5356), (3666, 5150), (3900, 4841), (4017, 4700)]