16509955

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 27141120

約数和(自身を除く): 10631165

約数列:

[1, 5, 7, 11, 19, 35, 37, 55, 61, 77, 95, 133, 185, 209, 259, 305, 385, 407, 427, 665, 671, 703, 1045, 1159, 1295, 1463, 2035, 2135, 2257, 2849, 3355, 3515, 4697, 4921, 5795, 7315, 7733, 8113, 11285, 12749, 14245, 15799, 23485, 24605, 24827, 38665, 40565, 42883, 54131, 63745, 78995, 89243, 124135, 173789, 214415, 270655, 300181, 446215, 471713, 868945, 1500905, 2358565, 3301991, 16509955]

約数ペア:

[(1, 16509955), (5, 3301991), (7, 2358565), (11, 1500905), (19, 868945), (35, 471713), (37, 446215), (55, 300181), (61, 270655), (77, 214415), (95, 173789), (133, 124135), (185, 89243), (209, 78995), (259, 63745), (305, 54131), (385, 42883), (407, 40565), (427, 38665), (665, 24827), (671, 24605), (703, 23485), (1045, 15799), (1159, 14245), (1295, 12749), (1463, 11285), (2035, 8113), (2135, 7733), (2257, 7315), (2849, 5795), (3355, 4921), (3515, 4697)]