20830572

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:779

約数の個数: 72

約数和(自身を含む): 60732672

約数和(自身を除く): 39902100

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 131, 252, 262, 393, 524, 631, 786, 917, 1179, 1262, 1572, 1834, 1893, 2358, 2524, 2751, 3668, 3786, 4417, 4716, 5502, 5679, 7572, 8253, 8834, 11004, 11358, 13251, 16506, 17668, 22716, 26502, 33012, 39753, 53004, 79506, 82661, 159012, 165322, 247983, 330644, 495966, 578627, 743949, 991932, 1157254, 1487898, 1735881, 2314508, 2975796, 3471762, 5207643, 6943524, 10415286, 20830572]

約数ペア:

[(1, 20830572), (2, 10415286), (3, 6943524), (4, 5207643), (6, 3471762), (7, 2975796), (9, 2314508), (12, 1735881), (14, 1487898), (18, 1157254), (21, 991932), (28, 743949), (36, 578627), (42, 495966), (63, 330644), (84, 247983), (126, 165322), (131, 159012), (252, 82661), (262, 79506), (393, 53004), (524, 39753), (631, 33012), (786, 26502), (917, 22716), (1179, 17668), (1262, 16506), (1572, 13251), (1834, 11358), (1893, 11004), (2358, 8834), (2524, 8253), (2751, 7572), (3668, 5679), (3786, 5502), (4417, 4716)]