31189964

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 64254960

約数和(自身を除く): 33064996

約数列:

[1, 2, 4, 13, 26, 29, 37, 43, 52, 58, 74, 86, 116, 148, 169, 172, 338, 377, 481, 559, 676, 754, 962, 1073, 1118, 1247, 1508, 1591, 1924, 2146, 2236, 2494, 3182, 4292, 4901, 4988, 6253, 6364, 7267, 9802, 12506, 13949, 14534, 16211, 19604, 20683, 25012, 27898, 29068, 32422, 41366, 46139, 55796, 64844, 82732, 92278, 181337, 184556, 210743, 268879, 362674, 421486, 537758, 599807, 725348, 842972, 1075516, 1199614, 2399228, 7797491, 15594982, 31189964]

約数ペア:

[(1, 31189964), (2, 15594982), (4, 7797491), (13, 2399228), (26, 1199614), (29, 1075516), (37, 842972), (43, 725348), (52, 599807), (58, 537758), (74, 421486), (86, 362674), (116, 268879), (148, 210743), (169, 184556), (172, 181337), (338, 92278), (377, 82732), (481, 64844), (559, 55796), (676, 46139), (754, 41366), (962, 32422), (1073, 29068), (1118, 27898), (1247, 25012), (1508, 20683), (1591, 19604), (1924, 16211), (2146, 14534), (2236, 13949), (2494, 12506), (3182, 9802), (4292, 7267), (4901, 6364), (4988, 6253)]