19665780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 57953280

約数和(自身を除く): 38287500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 97, 109, 124, 155, 186, 194, 218, 291, 310, 327, 372, 388, 436, 465, 485, 545, 582, 620, 654, 930, 970, 1090, 1164, 1308, 1455, 1635, 1860, 1940, 2180, 2910, 3007, 3270, 3379, 5820, 6014, 6540, 6758, 9021, 10137, 10573, 12028, 13516, 15035, 16895, 18042, 20274, 21146, 30070, 31719, 33790, 36084, 40548, 42292, 45105, 50685, 52865, 60140, 63438, 67580, 90210, 101370, 105730, 126876, 158595, 180420, 202740, 211460, 317190, 327763, 634380, 655526, 983289, 1311052, 1638815, 1966578, 3277630, 3933156, 4916445, 6555260, 9832890, 19665780]

約数ペア:

[(1, 19665780), (2, 9832890), (3, 6555260), (4, 4916445), (5, 3933156), (6, 3277630), (10, 1966578), (12, 1638815), (15, 1311052), (20, 983289), (30, 655526), (31, 634380), (60, 327763), (62, 317190), (93, 211460), (97, 202740), (109, 180420), (124, 158595), (155, 126876), (186, 105730), (194, 101370), (218, 90210), (291, 67580), (310, 63438), (327, 60140), (372, 52865), (388, 50685), (436, 45105), (465, 42292), (485, 40548), (545, 36084), (582, 33790), (620, 31719), (654, 30070), (930, 21146), (970, 20274), (1090, 18042), (1164, 16895), (1308, 15035), (1455, 13516), (1635, 12028), (1860, 10573), (1940, 10137), (2180, 9021), (2910, 6758), (3007, 6540), (3270, 6014), (3379, 5820)]