61619460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{20959}}^1$

素因数の和:20985

約数の個数: 72

約数和(自身を含む): 200712960

約数和(自身を除く): 139093500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 20959, 41918, 62877, 83836, 104795, 125754, 146713, 209590, 251508, 293426, 314385, 419180, 440139, 586852, 628770, 733565, 880278, 1026991, 1257540, 1467130, 1760556, 2053982, 2200695, 2934260, 3080973, 4107964, 4401390, 5134955, 6161946, 8802780, 10269910, 12323892, 15404865, 20539820, 30809730, 61619460]

約数ペア:

[(1, 61619460), (2, 30809730), (3, 20539820), (4, 15404865), (5, 12323892), (6, 10269910), (7, 8802780), (10, 6161946), (12, 5134955), (14, 4401390), (15, 4107964), (20, 3080973), (21, 2934260), (28, 2200695), (30, 2053982), (35, 1760556), (42, 1467130), (49, 1257540), (60, 1026991), (70, 880278), (84, 733565), (98, 628770), (105, 586852), (140, 440139), (147, 419180), (196, 314385), (210, 293426), (245, 251508), (294, 209590), (420, 146713), (490, 125754), (588, 104795), (735, 83836), (980, 62877), (1470, 41918), (2940, 20959)]