18307816

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 38361600

約数和(自身を除く): 20053784

約数列:

[1, 2, 4, 8, 23, 29, 46, 47, 58, 73, 92, 94, 116, 146, 184, 188, 232, 292, 376, 584, 667, 1081, 1334, 1363, 1679, 2117, 2162, 2668, 2726, 3358, 3431, 4234, 4324, 5336, 5452, 6716, 6862, 8468, 8648, 10904, 13432, 13724, 16936, 27448, 31349, 48691, 62698, 78913, 97382, 99499, 125396, 157826, 194764, 198998, 250792, 315652, 389528, 397996, 631304, 795992, 2288477, 4576954, 9153908, 18307816]

約数ペア:

[(1, 18307816), (2, 9153908), (4, 4576954), (8, 2288477), (23, 795992), (29, 631304), (46, 397996), (47, 389528), (58, 315652), (73, 250792), (92, 198998), (94, 194764), (116, 157826), (146, 125396), (184, 99499), (188, 97382), (232, 78913), (292, 62698), (376, 48691), (584, 31349), (667, 27448), (1081, 16936), (1334, 13724), (1363, 13432), (1679, 10904), (2117, 8648), (2162, 8468), (2668, 6862), (2726, 6716), (3358, 5452), (3431, 5336), (4234, 4324)]