31100872

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 68408550

約数和(自身を除く): 37307678

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 89, 121, 152, 178, 209, 242, 356, 361, 418, 484, 712, 722, 836, 968, 979, 1444, 1672, 1691, 1958, 2299, 2888, 3382, 3916, 3971, 4598, 6764, 7832, 7942, 9196, 10769, 13528, 15884, 18392, 18601, 21538, 31768, 32129, 37202, 43076, 43681, 64258, 74404, 86152, 87362, 128516, 148808, 174724, 204611, 257032, 349448, 353419, 409222, 706838, 818444, 1413676, 1636888, 2827352, 3887609, 7775218, 15550436, 31100872]

約数ペア:

[(1, 31100872), (2, 15550436), (4, 7775218), (8, 3887609), (11, 2827352), (19, 1636888), (22, 1413676), (38, 818444), (44, 706838), (76, 409222), (88, 353419), (89, 349448), (121, 257032), (152, 204611), (178, 174724), (209, 148808), (242, 128516), (356, 87362), (361, 86152), (418, 74404), (484, 64258), (712, 43681), (722, 43076), (836, 37202), (968, 32129), (979, 31768), (1444, 21538), (1672, 18601), (1691, 18392), (1958, 15884), (2299, 13528), (2888, 10769), (3382, 9196), (3916, 7942), (3971, 7832), (4598, 6764)]