31712940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{25169}}^1$

素因数の和:25191

約数の個数: 72

約数和(自身を含む): 109942560

約数和(自身を除く): 78229620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 25169, 50338, 75507, 100676, 125845, 151014, 176183, 226521, 251690, 302028, 352366, 377535, 453042, 503380, 528549, 704732, 755070, 880915, 906084, 1057098, 1132605, 1510140, 1585647, 1761830, 2114196, 2265210, 2642745, 3171294, 3523660, 4530420, 5285490, 6342588, 7928235, 10570980, 15856470, 31712940]

約数ペア:

[(1, 31712940), (2, 15856470), (3, 10570980), (4, 7928235), (5, 6342588), (6, 5285490), (7, 4530420), (9, 3523660), (10, 3171294), (12, 2642745), (14, 2265210), (15, 2114196), (18, 1761830), (20, 1585647), (21, 1510140), (28, 1132605), (30, 1057098), (35, 906084), (36, 880915), (42, 755070), (45, 704732), (60, 528549), (63, 503380), (70, 453042), (84, 377535), (90, 352366), (105, 302028), (126, 251690), (140, 226521), (180, 176183), (210, 151014), (252, 125845), (315, 100676), (420, 75507), (630, 50338), (1260, 25169)]