81999036

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4583}}^1$

素因数の和:4671

約数の個数: 72

約数和(自身を含む): 240274944

約数和(自身を除く): 158275908

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 71, 84, 126, 142, 213, 252, 284, 426, 497, 639, 852, 994, 1278, 1491, 1988, 2556, 2982, 4473, 4583, 5964, 8946, 9166, 13749, 17892, 18332, 27498, 32081, 41247, 54996, 64162, 82494, 96243, 128324, 164988, 192486, 288729, 325393, 384972, 577458, 650786, 976179, 1154916, 1301572, 1952358, 2277751, 2928537, 3904716, 4555502, 5857074, 6833253, 9111004, 11714148, 13666506, 20499759, 27333012, 40999518, 81999036]

約数ペア:

[(1, 81999036), (2, 40999518), (3, 27333012), (4, 20499759), (6, 13666506), (7, 11714148), (9, 9111004), (12, 6833253), (14, 5857074), (18, 4555502), (21, 3904716), (28, 2928537), (36, 2277751), (42, 1952358), (63, 1301572), (71, 1154916), (84, 976179), (126, 650786), (142, 577458), (213, 384972), (252, 325393), (284, 288729), (426, 192486), (497, 164988), (639, 128324), (852, 96243), (994, 82494), (1278, 64162), (1491, 54996), (1988, 41247), (2556, 32081), (2982, 27498), (4473, 18332), (4583, 17892), (5964, 13749), (8946, 9166)]