123049780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{521}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 302419656

約数和(自身を除く): 179369876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 241, 245, 482, 490, 521, 964, 980, 1042, 1205, 1687, 2084, 2410, 2605, 3374, 3647, 4820, 5210, 6748, 7294, 8435, 10420, 11809, 14588, 16870, 18235, 23618, 25529, 33740, 36470, 47236, 51058, 59045, 72940, 102116, 118090, 125561, 127645, 236180, 251122, 255290, 502244, 510580, 627805, 878927, 1255610, 1757854, 2511220, 3515708, 4394635, 6152489, 8789270, 12304978, 17578540, 24609956, 30762445, 61524890, 123049780]

約数ペア:

[(1, 123049780), (2, 61524890), (4, 30762445), (5, 24609956), (7, 17578540), (10, 12304978), (14, 8789270), (20, 6152489), (28, 4394635), (35, 3515708), (49, 2511220), (70, 1757854), (98, 1255610), (140, 878927), (196, 627805), (241, 510580), (245, 502244), (482, 255290), (490, 251122), (521, 236180), (964, 127645), (980, 125561), (1042, 118090), (1205, 102116), (1687, 72940), (2084, 59045), (2410, 51058), (2605, 47236), (3374, 36470), (3647, 33740), (4820, 25529), (5210, 23618), (6748, 18235), (7294, 16870), (8435, 14588), (10420, 11809)]