31643220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 105719040

約数和(自身を除く): 74075820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 49, 60, 70, 84, 94, 98, 105, 140, 141, 147, 188, 196, 210, 229, 235, 245, 282, 294, 329, 420, 458, 470, 490, 564, 588, 658, 687, 705, 735, 916, 940, 980, 987, 1145, 1316, 1374, 1410, 1470, 1603, 1645, 1974, 2290, 2303, 2748, 2820, 2940, 3206, 3290, 3435, 3948, 4580, 4606, 4809, 4935, 6412, 6580, 6870, 6909, 8015, 9212, 9618, 9870, 10763, 11221, 11515, 13740, 13818, 16030, 19236, 19740, 21526, 22442, 23030, 24045, 27636, 32060, 32289, 33663, 34545, 43052, 44884, 46060, 48090, 53815, 56105, 64578, 67326, 69090, 75341, 96180, 107630, 112210, 129156, 134652, 138180, 150682, 161445, 168315, 215260, 224420, 226023, 301364, 322890, 336630, 376705, 452046, 527387, 645780, 673260, 753410, 904092, 1054774, 1130115, 1506820, 1582161, 2109548, 2260230, 2636935, 3164322, 4520460, 5273870, 6328644, 7910805, 10547740, 15821610, 31643220]

約数ペア:

[(1, 31643220), (2, 15821610), (3, 10547740), (4, 7910805), (5, 6328644), (6, 5273870), (7, 4520460), (10, 3164322), (12, 2636935), (14, 2260230), (15, 2109548), (20, 1582161), (21, 1506820), (28, 1130115), (30, 1054774), (35, 904092), (42, 753410), (47, 673260), (49, 645780), (60, 527387), (70, 452046), (84, 376705), (94, 336630), (98, 322890), (105, 301364), (140, 226023), (141, 224420), (147, 215260), (188, 168315), (196, 161445), (210, 150682), (229, 138180), (235, 134652), (245, 129156), (282, 112210), (294, 107630), (329, 96180), (420, 75341), (458, 69090), (470, 67326), (490, 64578), (564, 56105), (588, 53815), (658, 48090), (687, 46060), (705, 44884), (735, 43052), (916, 34545), (940, 33663), (980, 32289), (987, 32060), (1145, 27636), (1316, 24045), (1374, 23030), (1410, 22442), (1470, 21526), (1603, 19740), (1645, 19236), (1974, 16030), (2290, 13818), (2303, 13740), (2748, 11515), (2820, 11221), (2940, 10763), (3206, 9870), (3290, 9618), (3435, 9212), (3948, 8015), (4580, 6909), (4606, 6870), (4809, 6580), (4935, 6412)]