313375778

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{751}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 505344000

約数和(自身を除く): 191968222

約数列:

[1, 2, 19, 38, 79, 139, 158, 278, 751, 1501, 1502, 2641, 3002, 5282, 10981, 14269, 21962, 28538, 59329, 104389, 118658, 208639, 208778, 417278, 1127251, 1983391, 2254502, 3966782, 8246731, 16493462, 156687889, 313375778]

約数ペア:

[(1, 313375778), (2, 156687889), (19, 16493462), (38, 8246731), (79, 3966782), (139, 2254502), (158, 1983391), (278, 1127251), (751, 417278), (1501, 208778), (1502, 208639), (2641, 118658), (3002, 104389), (5282, 59329), (10981, 28538), (14269, 21962)]