20154888

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 59918040

約数和(自身を除く): 39763152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 61, 72, 78, 104, 117, 122, 156, 183, 234, 244, 312, 353, 366, 468, 488, 549, 706, 732, 793, 936, 1059, 1098, 1412, 1464, 1586, 2118, 2196, 2379, 2824, 3172, 3177, 4236, 4392, 4589, 4758, 6344, 6354, 7137, 8472, 9178, 9516, 12708, 13767, 14274, 18356, 19032, 21533, 25416, 27534, 28548, 36712, 41301, 43066, 55068, 57096, 64599, 82602, 86132, 110136, 129198, 165204, 172264, 193797, 258396, 279929, 330408, 387594, 516792, 559858, 775188, 839787, 1119716, 1550376, 1679574, 2239432, 2519361, 3359148, 5038722, 6718296, 10077444, 20154888]

約数ペア:

[(1, 20154888), (2, 10077444), (3, 6718296), (4, 5038722), (6, 3359148), (8, 2519361), (9, 2239432), (12, 1679574), (13, 1550376), (18, 1119716), (24, 839787), (26, 775188), (36, 559858), (39, 516792), (52, 387594), (61, 330408), (72, 279929), (78, 258396), (104, 193797), (117, 172264), (122, 165204), (156, 129198), (183, 110136), (234, 86132), (244, 82602), (312, 64599), (353, 57096), (366, 55068), (468, 43066), (488, 41301), (549, 36712), (706, 28548), (732, 27534), (793, 25416), (936, 21533), (1059, 19032), (1098, 18356), (1412, 14274), (1464, 13767), (1586, 12708), (2118, 9516), (2196, 9178), (2379, 8472), (2824, 7137), (3172, 6354), (3177, 6344), (4236, 4758), (4392, 4589)]