28142940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1811}}^1$

素因数の和:1867

約数の個数: 96

約数和(自身を含む): 92542464

約数和(自身を除く): 64399524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1554, 1811, 2220, 2590, 3108, 3622, 3885, 5180, 5433, 7244, 7770, 9055, 10866, 12677, 15540, 18110, 21732, 25354, 27165, 36220, 38031, 50708, 54330, 63385, 67007, 76062, 108660, 126770, 134014, 152124, 190155, 201021, 253540, 268028, 335035, 380310, 402042, 469049, 670070, 760620, 804084, 938098, 1005105, 1340140, 1407147, 1876196, 2010210, 2345245, 2814294, 4020420, 4690490, 5628588, 7035735, 9380980, 14071470, 28142940]

約数ペア:

[(1, 28142940), (2, 14071470), (3, 9380980), (4, 7035735), (5, 5628588), (6, 4690490), (7, 4020420), (10, 2814294), (12, 2345245), (14, 2010210), (15, 1876196), (20, 1407147), (21, 1340140), (28, 1005105), (30, 938098), (35, 804084), (37, 760620), (42, 670070), (60, 469049), (70, 402042), (74, 380310), (84, 335035), (105, 268028), (111, 253540), (140, 201021), (148, 190155), (185, 152124), (210, 134014), (222, 126770), (259, 108660), (370, 76062), (420, 67007), (444, 63385), (518, 54330), (555, 50708), (740, 38031), (777, 36220), (1036, 27165), (1110, 25354), (1295, 21732), (1554, 18110), (1811, 15540), (2220, 12677), (2590, 10866), (3108, 9055), (3622, 7770), (3885, 7244), (5180, 5433)]