1961231965

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{11657}}^1$

素因数の和:11722

約数の個数: 64

約数和(自身を含む): 3223203840

約数和(自身を除く): 1261971875

約数列:

[1, 5, 7, 11, 19, 23, 35, 55, 77, 95, 115, 133, 161, 209, 253, 385, 437, 665, 805, 1045, 1265, 1463, 1771, 2185, 3059, 4807, 7315, 8855, 11657, 15295, 24035, 33649, 58285, 81599, 128227, 168245, 221483, 268111, 407995, 641135, 897589, 1107415, 1340555, 1550381, 1876777, 2436313, 2949221, 4487945, 5094109, 7751905, 9383885, 12181565, 14746105, 17054191, 20644547, 25470545, 35658763, 56035199, 85270955, 103222735, 178293815, 280175995, 392246393, 1961231965]

約数ペア:

[(1, 1961231965), (5, 392246393), (7, 280175995), (11, 178293815), (19, 103222735), (23, 85270955), (35, 56035199), (55, 35658763), (77, 25470545), (95, 20644547), (115, 17054191), (133, 14746105), (161, 12181565), (209, 9383885), (253, 7751905), (385, 5094109), (437, 4487945), (665, 2949221), (805, 2436313), (1045, 1876777), (1265, 1550381), (1463, 1340555), (1771, 1107415), (2185, 897589), (3059, 641135), (4807, 407995), (7315, 268111), (8855, 221483), (11657, 168245), (15295, 128227), (24035, 81599), (33649, 58285)]